src/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 General Public License as published by
  10   the Free Software Foundation; either version 2 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   General Public License for more details.
  17
  18   You should have received a copy of the GNU 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         }
 121
 122         if (level == EXIT_STATUS_LSB) {
 123                 switch ((int) status) {
 124
 125                 case EXIT_INVALIDARGUMENT:
 126                         return "INVALIDARGUMENT";
 127
 128                 case EXIT_NOTIMPLEMENTED:
 129                         return "NOTIMPLEMENTED";
 130
 131                 case EXIT_NOPERMISSION:
 132                         return "NOPERMISSION";
 133
 134                 case EXIT_NOTINSTALLED:
 135                         return "NOTINSSTALLED";
 136
 137                 case EXIT_NOTCONFIGURED:
 138                         return "NOTCONFIGURED";
 139
 140                 case EXIT_NOTRUNNING:
 141                         return "NOTRUNNING";
 142                 }
 143         }
 144
 145         return NULL;
 146 }
 147
 148
 149 bool is_clean_exit(int code, int status) {
 150
 151         if (code == CLD_EXITED)
 152                 return status == 0;
 153
 154         /* If a daemon does not implement handlers for some of the
 155          * signals that's not considered an unclean shutdown */
 156         if (code == CLD_KILLED)
 157                 return
 158                         status == SIGHUP ||
 159                         status == SIGINT ||
 160                         status == SIGTERM ||
 161                         status == SIGPIPE;
 162
 163         return false;
 164 }
 165
 166 bool is_clean_exit_lsb(int code, int status) {
 167
 168         if (is_clean_exit(code, status))
 169                 return true;
 170
 171         return
 172                 code == CLD_EXITED &&
 173                 (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
 174 }