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(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_PAM:
 115                         return "PAM";
 116
 117                 case EXIT_NETWORK:
 118                         return "NETWORK";
 119
 120                 case EXIT_NAMESPACE:
 121                         return "NAMESPACE";
 122
 123                 case EXIT_NO_NEW_PRIVILEGES:
 124                         return "NO_NEW_PRIVILEGES";
 125
 126                 case EXIT_SECCOMP:
 127                         return "SECCOMP";
 128
 129                 case EXIT_SELINUX_CONTEXT:
 130                         return "SELINUX_CONTEXT";
 131
 132                 case EXIT_PERSONALITY:
 133                         return "PERSONALITY";
 134
 135                 case EXIT_APPARMOR_PROFILE:
 136                         return "APPARMOR";
 137
 138                 case EXIT_ADDRESS_FAMILIES:
 139                         return "ADDRESS_FAMILIES";
 140
 141                 case EXIT_RUNTIME_DIRECTORY:
 142                         return "RUNTIME_DIRECTORY";
 143
 144                 case EXIT_CHOWN:
 145                         return "CHOWN";
 146
 147                 case EXIT_MAKE_STARTER:
 148                         return "MAKE_STARTER";
 149
 150                 case EXIT_BUS_ENDPOINT:
 151                         return "BUS_ENDPOINT";
 152
 153                 case EXIT_SMACK_PROCESS_LABEL:
 154                         return "SMACK_PROCESS_LABEL";
 155                 }
 156         }
 157
 158         if (level == EXIT_STATUS_LSB) {
 159                 switch ((int) status) {
 160
 161                 case EXIT_INVALIDARGUMENT:
 162                         return "INVALIDARGUMENT";
 163
 164                 case EXIT_NOTIMPLEMENTED:
 165                         return "NOTIMPLEMENTED";
 166
 167                 case EXIT_NOPERMISSION:
 168                         return "NOPERMISSION";
 169
 170                 case EXIT_NOTINSTALLED:
 171                         return "NOTINSTALLED";
 172
 173                 case EXIT_NOTCONFIGURED:
 174                         return "NOTCONFIGURED";
 175
 176                 case EXIT_NOTRUNNING:
 177                         return "NOTRUNNING";
 178                 }
 179         }
 180
 181         return NULL;
 182 }
 183
 184
 185 bool is_clean_exit(int code, int status, ExitStatusSet *success_status) {
 186
 187         if (code == CLD_EXITED)
 188                 return status == 0 ||
 189                        (success_status &&
 190                        set_contains(success_status->status, INT_TO_PTR(status)));
 191
 192         /* If a daemon does not implement handlers for some of the
 193          * signals that's not considered an unclean shutdown */
 194         if (code == CLD_KILLED)
 195                 return
 196                         status == SIGHUP ||
 197                         status == SIGINT ||
 198                         status == SIGTERM ||
 199                         status == SIGPIPE ||
 200                         (success_status &&
 201                         set_contains(success_status->signal, INT_TO_PTR(status)));
 202
 203         return false;
 204 }
 205
 206 bool is_clean_exit_lsb(int code, int status, ExitStatusSet *success_status) {
 207
 208         if (is_clean_exit(code, status, success_status))
 209                 return true;
 210
 211         return
 212                 code == CLD_EXITED &&
 213                 (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
 214 }
 215
 216 void exit_status_set_free(ExitStatusSet *x) {
 217         assert(x);
 218
 219         set_free(x->status);
 220         set_free(x->signal);
 221         x->status = x->signal = NULL;
 222 }
 223
 224 bool exit_status_set_is_empty(ExitStatusSet *x) {
 225         if (!x)
 226                 return true;
 227
 228         return set_isempty(x->status) && set_isempty(x->signal);
 229 }
 230
 231 bool exit_status_set_test(ExitStatusSet *x, int code, int status) {
 232
 233         if (exit_status_set_is_empty(x))
 234                 return false;
 235
 236         if (code == CLD_EXITED && set_contains(x->status, INT_TO_PTR(status)))
 237                 return true;
 238
 239         if (IN_SET(code, CLD_KILLED, CLD_DUMPED) && set_contains(x->signal, INT_TO_PTR(status)))
 240                 return true;
 241
 242         return false;
 243 }