projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| 78f22b97 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| 2 | ||
| 3 | /*** | |
| 4 | This file is part of systemd. | |
| 5 | ||
| 6 | Copyright 2010 Lennart Poettering | |
| 7 | ||
| 8 | systemd is free software; you can redistribute it and/or modify it | |
| 9 | under the terms of the GNU Lesser General Public License as published by | |
| 10 | the Free Software Foundation; either version 2.1 of the License, or | |
| 11 | (at your option) any later version. | |
| 12 | ||
| 13 | systemd is distributed in the hope that it will be useful, but | |
| 14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | Lesser General Public License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU Lesser General Public License | |
| 19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| 20 | ***/ | |
| 21 | ||
| 11c3a366 TA |
22 | #include <errno.h> |
| 23 | #include <sys/resource.h> | |
| 24 | ||
| 93cc7779 | 25 | #include "macro.h" |
| 78f22b97 LP |
26 | #include "missing.h" |
| 27 | #include "rlimit-util.h" | |
| 8b43440b | 28 | #include "string-table.h" |
| 78f22b97 LP |
29 | |
| 30 | int setrlimit_closest(int resource, const struct rlimit *rlim) { | |
| 31 | struct rlimit highest, fixed; | |
| 32 | ||
| 33 | assert(rlim); | |
| 34 | ||
| 35 | if (setrlimit(resource, rlim) >= 0) | |
| 36 | return 0; | |
| 37 | ||
| 38 | if (errno != EPERM) | |
| 39 | return -errno; | |
| 40 | ||
| 41 | /* So we failed to set the desired setrlimit, then let's try | |
| 42 | * to get as close as we can */ | |
| 43 | assert_se(getrlimit(resource, &highest) == 0); | |
| 44 | ||
| 45 | fixed.rlim_cur = MIN(rlim->rlim_cur, highest.rlim_max); | |
| 46 | fixed.rlim_max = MIN(rlim->rlim_max, highest.rlim_max); | |
| 47 | ||
| 48 | if (setrlimit(resource, &fixed) < 0) | |
| 49 | return -errno; | |
| 50 | ||
| 51 | return 0; | |
| 52 | } | |
| 53 | ||
| 54 | static const char* const rlimit_table[_RLIMIT_MAX] = { | |
| 55 | [RLIMIT_CPU] = "LimitCPU", | |
| 56 | [RLIMIT_FSIZE] = "LimitFSIZE", | |
| 57 | [RLIMIT_DATA] = "LimitDATA", | |
| 58 | [RLIMIT_STACK] = "LimitSTACK", | |
| 59 | [RLIMIT_CORE] = "LimitCORE", | |
| 60 | [RLIMIT_RSS] = "LimitRSS", | |
| 61 | [RLIMIT_NOFILE] = "LimitNOFILE", | |
| 62 | [RLIMIT_AS] = "LimitAS", | |
| 63 | [RLIMIT_NPROC] = "LimitNPROC", | |
| 64 | [RLIMIT_MEMLOCK] = "LimitMEMLOCK", | |
| 65 | [RLIMIT_LOCKS] = "LimitLOCKS", | |
| 66 | [RLIMIT_SIGPENDING] = "LimitSIGPENDING", | |
| 67 | [RLIMIT_MSGQUEUE] = "LimitMSGQUEUE", | |
| 68 | [RLIMIT_NICE] = "LimitNICE", | |
| 69 | [RLIMIT_RTPRIO] = "LimitRTPRIO", | |
| 70 | [RLIMIT_RTTIME] = "LimitRTTIME" | |
| 71 | }; | |
| 72 | ||
| 73 | DEFINE_STRING_TABLE_LOOKUP(rlimit, int); |