src/shared/exit-status.c

   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
  22 #include <stdlib.h>
  23 #include <sys/wait.h>
  24
  25 #include "exit-status.h"
  26
  27 const char* exit_status_to_string(ExitStatus status, ExitStatusLevel level) {
  28
  29         /* We cast to int here, so that -Wenum doesn't complain that
  30          * EXIT_SUCCESS/EXIT_FAILURE aren't in the enum */
  31
  32         switch ((int) status) {
  33
  34         case EXIT_SUCCESS:
  35                 return "SUCCESS";
  36
  37         case EXIT_FAILURE:
  38                 return "FAILURE";
  39         }
  40
  41
  42         if (level == EXIT_STATUS_SYSTEMD || level == EXIT_STATUS_LSB) {
  43                 switch ((int) status) {
  44
  45                 case EXIT_CHDIR:
  46                         return "CHDIR";
  47
  48                 case EXIT_NICE:
  49                         return "NICE";
  50
  51                 case EXIT_FDS:
  52                         return "FDS";
  53
  54                 case EXIT_EXEC:
  55                         return "EXEC";
  56
  57                 case EXIT_MEMORY:
  58                         return "MEMORY";
  59
  60                 case EXIT_LIMITS:
  61                         return "LIMITS";
  62
  63                 case EXIT_OOM_ADJUST:
  64                         return "OOM_ADJUST";
  65
  66                 case EXIT_SIGNAL_MASK:
  67                         return "SIGNAL_MASK";
  68
  69                 case EXIT_STDIN:
  70                         return "STDIN";
  71
  72                 case EXIT_STDOUT:
  73                         return "STDOUT";
  74
  75                 case EXIT_CHROOT:
  76                         return "CHROOT";
  77
  78                 case EXIT_IOPRIO:
  79                         return "IOPRIO";
  80
  81                 case EXIT_TIMERSLACK:
  82                         return "TIMERSLACK";
  83
  84                 case EXIT_SECUREBITS:
  85                         return "SECUREBITS";
  86
  87                 case EXIT_SETSCHEDULER:
  88                         return "SETSCHEDULER";
  89
  90                 case EXIT_CPUAFFINITY:
  91                         return "CPUAFFINITY";
  92
  93                 case EXIT_GROUP:
  94                         return "GROUP";
  95
  96                 case EXIT_USER:
  97                         return "USER";
  98
  99                 case EXIT_CAPABILITIES:
 100                         return "CAPABILITIES";
 101
 102                 case EXIT_CGROUP:
 103                         return "CGROUP";
 104
 105                 case EXIT_SETSID:
 106                         return "SETSID";
 107
 108                 case EXIT_CONFIRM:
 109                         return "CONFIRM";
 110
 111                 case EXIT_STDERR:
 112                         return "STDERR";
 113
 114                 case EXIT_TCPWRAP:
 115                         return "TCPWRAP";
 116
 117                 case EXIT_PAM:
 118                         return "PAM";
 119
 120                 case EXIT_NETWORK:
 121                         return "NETWORK";
 122
 123                 case EXIT_NAMESPACE:
 124                         return "NAMESPACE";
 125                 }
 126         }
 127
 128         if (level == EXIT_STATUS_LSB) {
 129                 switch ((int) status) {
 130
 131                 case EXIT_INVALIDARGUMENT:
 132                         return "INVALIDARGUMENT";
 133
 134                 case EXIT_NOTIMPLEMENTED:
 135                         return "NOTIMPLEMENTED";
 136
 137                 case EXIT_NOPERMISSION:
 138                         return "NOPERMISSION";
 139
 140                 case EXIT_NOTINSTALLED:
 141                         return "NOTINSSTALLED";
 142
 143                 case EXIT_NOTCONFIGURED:
 144                         return "NOTCONFIGURED";
 145
 146                 case EXIT_NOTRUNNING:
 147                         return "NOTRUNNING";
 148                 }
 149         }
 150
 151         return NULL;
 152 }
 153
 154
 155 bool is_clean_exit(int code, int status) {
 156
 157         if (code == CLD_EXITED)
 158                 return status == 0;
 159
 160         /* If a daemon does not implement handlers for some of the
 161          * signals that's not considered an unclean shutdown */
 162         if (code == CLD_KILLED)
 163                 return
 164                         status == SIGHUP ||
 165                         status == SIGINT ||
 166                         status == SIGTERM ||
 167                         status == SIGPIPE;
 168
 169         return false;
 170 }
 171
 172 bool is_clean_exit_lsb(int code, int status) {
 173
 174         if (is_clean_exit(code, status))
 175                 return true;
 176
 177         return
 178                 code == CLD_EXITED &&
 179                 (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
 180 }