src/basic/exit-status.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2010 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <signal.h>
  21 #include <stdlib.h>
  22
  23 #include "exit-status.h"
  24 #include "macro.h"
  25 #include "set.h"
  26
  27 const char* exit_status_to_string(int 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 (status) {
  33
  34         case EXIT_SUCCESS:
  35                 return "SUCCESS";
  36
  37         case EXIT_FAILURE:
  38                 return "FAILURE";
  39         }
  40
  41         if (IN_SET(level, EXIT_STATUS_SYSTEMD, EXIT_STATUS_LSB)) {
  42                 switch (status) {
  43
  44                 case EXIT_CHDIR:
  45                         return "CHDIR";
  46
  47                 case EXIT_NICE:
  48                         return "NICE";
  49
  50                 case EXIT_FDS:
  51                         return "FDS";
  52
  53                 case EXIT_EXEC:
  54                         return "EXEC";
  55
  56                 case EXIT_MEMORY:
  57                         return "MEMORY";
  58
  59                 case EXIT_LIMITS:
  60                         return "LIMITS";
  61
  62                 case EXIT_OOM_ADJUST:
  63                         return "OOM_ADJUST";
  64
  65                 case EXIT_SIGNAL_MASK:
  66                         return "SIGNAL_MASK";
  67
  68                 case EXIT_STDIN:
  69                         return "STDIN";
  70
  71                 case EXIT_STDOUT:
  72                         return "STDOUT";
  73
  74                 case EXIT_CHROOT:
  75                         return "CHROOT";
  76
  77                 case EXIT_IOPRIO:
  78                         return "IOPRIO";
  79
  80                 case EXIT_TIMERSLACK:
  81                         return "TIMERSLACK";
  82
  83                 case EXIT_SECUREBITS:
  84                         return "SECUREBITS";
  85
  86                 case EXIT_SETSCHEDULER:
  87                         return "SETSCHEDULER";
  88
  89                 case EXIT_CPUAFFINITY:
  90                         return "CPUAFFINITY";
  91
  92                 case EXIT_GROUP:
  93                         return "GROUP";
  94
  95                 case EXIT_USER:
  96                         return "USER";
  97
  98                 case EXIT_CAPABILITIES:
  99                         return "CAPABILITIES";
 100
 101                 case EXIT_CGROUP:
 102                         return "CGROUP";
 103
 104                 case EXIT_SETSID:
 105                         return "SETSID";
 106
 107                 case EXIT_CONFIRM:
 108                         return "CONFIRM";
 109
 110                 case EXIT_STDERR:
 111                         return "STDERR";
 112
 113                 case EXIT_PAM:
 114                         return "PAM";
 115
 116                 case EXIT_NETWORK:
 117                         return "NETWORK";
 118
 119                 case EXIT_NAMESPACE:
 120                         return "NAMESPACE";
 121
 122                 case EXIT_NO_NEW_PRIVILEGES:
 123                         return "NO_NEW_PRIVILEGES";
 124
 125                 case EXIT_SECCOMP:
 126                         return "SECCOMP";
 127
 128                 case EXIT_SELINUX_CONTEXT:
 129                         return "SELINUX_CONTEXT";
 130
 131                 case EXIT_PERSONALITY:
 132                         return "PERSONALITY";
 133
 134                 case EXIT_APPARMOR_PROFILE:
 135                         return "APPARMOR";
 136
 137                 case EXIT_ADDRESS_FAMILIES:
 138                         return "ADDRESS_FAMILIES";
 139
 140                 case EXIT_RUNTIME_DIRECTORY:
 141                         return "RUNTIME_DIRECTORY";
 142
 143                 case EXIT_MAKE_STARTER:
 144                         return "MAKE_STARTER";
 145
 146                 case EXIT_CHOWN:
 147                         return "CHOWN";
 148
 149                 case EXIT_SMACK_PROCESS_LABEL:
 150                         return "SMACK_PROCESS_LABEL";
 151                 }
 152         }
 153
 154         if (level == EXIT_STATUS_LSB) {
 155                 switch (status) {
 156
 157                 case EXIT_INVALIDARGUMENT:
 158                         return "INVALIDARGUMENT";
 159
 160                 case EXIT_NOTIMPLEMENTED:
 161                         return "NOTIMPLEMENTED";
 162
 163                 case EXIT_NOPERMISSION:
 164                         return "NOPERMISSION";
 165
 166                 case EXIT_NOTINSTALLED:
 167                         return "NOTINSTALLED";
 168
 169                 case EXIT_NOTCONFIGURED:
 170                         return "NOTCONFIGURED";
 171
 172                 case EXIT_NOTRUNNING:
 173                         return "NOTRUNNING";
 174                 }
 175         }
 176
 177         return NULL;
 178 }
 179
 180 bool is_clean_exit(int code, int status, ExitClean clean, ExitStatusSet *success_status) {
 181
 182         if (code == CLD_EXITED)
 183                 return status == 0 ||
 184                        (success_status &&
 185                        set_contains(success_status->status, INT_TO_PTR(status)));
 186
 187         /* If a daemon does not implement handlers for some of the signals that's not considered an unclean shutdown */
 188         if (code == CLD_KILLED)
 189                 return
 190                         (clean == EXIT_CLEAN_DAEMON && IN_SET(status, SIGHUP, SIGINT, SIGTERM, SIGPIPE)) ||
 191                         (success_status &&
 192                          set_contains(success_status->signal, INT_TO_PTR(status)));
 193
 194         return false;
 195 }
 196
 197 void exit_status_set_free(ExitStatusSet *x) {
 198         assert(x);
 199
 200         x->status = set_free(x->status);
 201         x->signal = set_free(x->signal);
 202 }
 203
 204 bool exit_status_set_is_empty(ExitStatusSet *x) {
 205         if (!x)
 206                 return true;
 207
 208         return set_isempty(x->status) && set_isempty(x->signal);
 209 }
 210
 211 bool exit_status_set_test(ExitStatusSet *x, int code, int status) {
 212
 213         if (exit_status_set_is_empty(x))
 214                 return false;
 215
 216         if (code == CLD_EXITED && set_contains(x->status, INT_TO_PTR(status)))
 217                 return true;
 218
 219         if (IN_SET(code, CLD_KILLED, CLD_DUMPED) && set_contains(x->signal, INT_TO_PTR(status)))
 220                 return true;
 221
 222         return false;
 223 }