src/basic/rlimit-util.c

78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering/***
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  This file is part of systemd.
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  Copyright 2010 Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  under the terms of the GNU Lesser General Public License as published by
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  (at your option) any later version.
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  systemd is distributed in the hope that it will be useful, but
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  Lesser General Public License for more details.
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  You should have received a copy of the GNU Lesser General Public License
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering***/
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <errno.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen#include <sys/resource.h>
11c3a36649e5e5e77db499c92f3cdcbd619efd3aThomas Hindoe Paaboel Andersen
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering#include "alloc-util.h"
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering#include "extract-word.h"
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering#include "formats-util.h"
93cc7779e0c121b75183920173f37cd1ee9d59cfThomas Hindoe Paaboel Andersen#include "macro.h"
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering#include "missing.h"
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering#include "rlimit-util.h"
8b43440b7ef4b81c69c31de7ff820dc07a780254Lennart Poettering#include "string-table.h"
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering#include "time-util.h"
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poetteringint setrlimit_closest(int resource, const struct rlimit *rlim) {
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        struct rlimit highest, fixed;
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        assert(rlim);
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        if (setrlimit(resource, rlim) >= 0)
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering                return 0;
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        if (errno != EPERM)
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering                return -errno;
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        /* So we failed to set the desired setrlimit, then let's try
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering         * to get as close as we can */
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        assert_se(getrlimit(resource, &highest) == 0);
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        fixed.rlim_cur = MIN(rlim->rlim_cur, highest.rlim_max);
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        fixed.rlim_max = MIN(rlim->rlim_max, highest.rlim_max);
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        if (setrlimit(resource, &fixed) < 0)
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering                return -errno;
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        return 0;
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering}
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringstatic int rlimit_parse_u64(const char *val, rlim_t *ret) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        uint64_t u;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        int r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(val);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (streq(val, "infinity")) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                *ret = RLIM_INFINITY;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        /* setrlimit(2) suggests rlim_t is always 64bit on Linux. */
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert_cc(sizeof(rlim_t) == sizeof(uint64_t));
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = safe_atou64(val, &u);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (u >= (uint64_t) RLIM_INFINITY)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -ERANGE;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        *ret = (rlim_t) u;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering}
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringstatic int rlimit_parse_size(const char *val, rlim_t *ret) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        uint64_t u;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        int r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(val);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (streq(val, "infinity")) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                *ret = RLIM_INFINITY;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = parse_size(val, 1024, &u);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (u >= (uint64_t) RLIM_INFINITY)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -ERANGE;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        *ret = (rlim_t) u;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering}
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringstatic int rlimit_parse_sec(const char *val, rlim_t *ret) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        uint64_t u;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        usec_t t;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        int r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(val);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (streq(val, "infinity")) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                *ret = RLIM_INFINITY;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = parse_sec(val, &t);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (t == USEC_INFINITY) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                *ret = RLIM_INFINITY;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        u = (uint64_t) DIV_ROUND_UP(t, USEC_PER_SEC);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (u >= (uint64_t) RLIM_INFINITY)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -ERANGE;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        *ret = (rlim_t) u;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering}
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringstatic int rlimit_parse_usec(const char *val, rlim_t *ret) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        usec_t t;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        int r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(val);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (streq(val, "infinity")) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                *ret = RLIM_INFINITY;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = parse_time(val, &t, 1);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (t == USEC_INFINITY) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                *ret = RLIM_INFINITY;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        *ret = (rlim_t) t;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering}
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringstatic int (*const rlimit_parse_table[_RLIMIT_MAX])(const char *val, rlim_t *ret) = {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_CPU] = rlimit_parse_sec,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_FSIZE] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_DATA] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_STACK] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_CORE] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_RSS] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_NOFILE] = rlimit_parse_u64,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_AS] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_NPROC] = rlimit_parse_u64,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_MEMLOCK] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_LOCKS] = rlimit_parse_u64,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_SIGPENDING] = rlimit_parse_u64,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_MSGQUEUE] = rlimit_parse_size,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_NICE] = rlimit_parse_u64,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_RTPRIO] = rlimit_parse_u64,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        [RLIMIT_RTTIME] = rlimit_parse_usec,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering};
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringint rlimit_parse_one(int resource, const char *val, rlim_t *ret) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(val);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (resource < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -EINVAL;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (resource >= _RLIMIT_MAX)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -EINVAL;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        return rlimit_parse_table[resource](val, ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering}
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poetteringint rlimit_parse(int resource, const char *val, struct rlimit *ret) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        _cleanup_free_ char *hard = NULL, *soft = NULL;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        rlim_t hl, sl;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        int r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(val);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        assert(ret);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = extract_first_word(&val, &soft, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r == 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -EINVAL;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = rlimit_parse_one(resource, soft, &sl);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        r = extract_first_word(&val, &hard, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (!isempty(val))
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                return -EINVAL;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        if (r == 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                hl = sl;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        else {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                r = rlimit_parse_one(resource, hard, &hl);
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                if (r < 0)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                        return r;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                if (sl > hl)
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                        return -EILSEQ;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        }
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        *ret = (struct rlimit) {
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                .rlim_cur = sl,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering                .rlim_max = hl,
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        };
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering        return 0;
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering}
d0a7c5f69207b6719bab94893035fc8f5f6f87cbLennart Poettering
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poetteringint rlimit_format(const struct rlimit *rl, char **ret) {
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        char *s = NULL;
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        assert(rl);
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        assert(ret);
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        if (rl->rlim_cur >= RLIM_INFINITY && rl->rlim_max >= RLIM_INFINITY)
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering                s = strdup("infinity");
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        else if (rl->rlim_cur >= RLIM_INFINITY)
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering                (void) asprintf(&s, "infinity:" RLIM_FMT, rl->rlim_max);
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        else if (rl->rlim_max >= RLIM_INFINITY)
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering                (void) asprintf(&s, RLIM_FMT ":infinity", rl->rlim_cur);
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        else if (rl->rlim_cur == rl->rlim_max)
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering                (void) asprintf(&s, RLIM_FMT, rl->rlim_cur);
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        else
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering                (void) asprintf(&s, RLIM_FMT ":" RLIM_FMT, rl->rlim_cur, rl->rlim_max);
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        if (!s)
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering                return -ENOMEM;
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        *ret = s;
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering        return 0;
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering}
99d4f5e5c0d2532159542519e683f976f881f0f5Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poetteringstatic const char* const rlimit_table[_RLIMIT_MAX] = {
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_CPU] = "LimitCPU",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_FSIZE] = "LimitFSIZE",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_DATA] = "LimitDATA",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_STACK] = "LimitSTACK",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_CORE] = "LimitCORE",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_RSS] = "LimitRSS",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_NOFILE] = "LimitNOFILE",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_AS] = "LimitAS",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_NPROC] = "LimitNPROC",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_MEMLOCK] = "LimitMEMLOCK",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_LOCKS] = "LimitLOCKS",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_SIGPENDING] = "LimitSIGPENDING",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_MSGQUEUE] = "LimitMSGQUEUE",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_NICE] = "LimitNICE",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_RTPRIO] = "LimitRTPRIO",
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering        [RLIMIT_RTTIME] = "LimitRTTIME"
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering};
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart Poettering
78f22b973fa2c9b09bd974680836df17163d9ee0Lennart PoetteringDEFINE_STRING_TABLE_LOOKUP(rlimit, int);