src/basic/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 <signal.h>
  24
  25 #include "exit-status.h"
  26 #include "set.h"
  27 #include "macro.h"
  28
  29 const char* exit_status_to_string(ExitStatus status, ExitStatusLevel level) {
  30
  31         /* We cast to int here, so that -Wenum doesn't complain that
  32          * EXIT_SUCCESS/EXIT_FAILURE aren't in the enum */
  33
  34         switch ((int) status) {
  35
  36         case EXIT_SUCCESS:
  37                 return "SUCCESS";
  38
  39         case EXIT_FAILURE:
  40                 return "FAILURE";
  41         }
  42
  43
  44         if (level == EXIT_STATUS_SYSTEMD || level == EXIT_STATUS_LSB) {
  45                 switch ((int) status) {
  46
  47                 case EXIT_CHDIR:
  48                         return "CHDIR";
  49
  50                 case EXIT_NICE:
  51                         return "NICE";
  52
  53                 case EXIT_FDS:
  54                         return "FDS";
  55
  56                 case EXIT_EXEC:
  57                         return "EXEC";
  58
  59                 case EXIT_MEMORY:
  60                         return "MEMORY";
  61
  62                 case EXIT_LIMITS:
  63                         return "LIMITS";
  64
  65                 case EXIT_OOM_ADJUST:
  66                         return "OOM_ADJUST";
  67
  68                 case EXIT_SIGNAL_MASK:
  69                         return "SIGNAL_MASK";
  70
  71                 case EXIT_STDIN:
  72                         return "STDIN";
  73
  74                 case EXIT_STDOUT:
  75                         return "STDOUT";
  76
  77                 case EXIT_CHROOT:
  78                         return "CHROOT";
  79
  80                 case EXIT_IOPRIO:
  81                         return "IOPRIO";
  82
  83                 case EXIT_TIMERSLACK:
  84                         return "TIMERSLACK";
  85
  86                 case EXIT_SECUREBITS:
  87                         return "SECUREBITS";
  88
  89                 case EXIT_SETSCHEDULER:
  90                         return "SETSCHEDULER";
  91
  92                 case EXIT_CPUAFFINITY:
  93                         return "CPUAFFINITY";
  94
  95                 case EXIT_GROUP:
  96                         return "GROUP";
  97
  98                 case EXIT_USER:
  99                         return "USER";
 100
 101                 case EXIT_CAPABILITIES:
 102                         return "CAPABILITIES";
 103
 104                 case EXIT_CGROUP:
 105                         return "CGROUP";
 106
 107                 case EXIT_SETSID:
 108                         return "SETSID";
 109
 110                 case EXIT_CONFIRM:
 111                         return "CONFIRM";
 112
 113                 case EXIT_STDERR:
 114                         return "STDERR";
 115
 116                 case EXIT_PAM:
 117                         return "PAM";
 118
 119                 case EXIT_NETWORK:
 120                         return "NETWORK";
 121
 122                 case EXIT_NAMESPACE:
 123                         return "NAMESPACE";
 124
 125                 case EXIT_NO_NEW_PRIVILEGES:
 126                         return "NO_NEW_PRIVILEGES";
 127
 128                 case EXIT_SECCOMP:
 129                         return "SECCOMP";
 130
 131                 case EXIT_SELINUX_CONTEXT:
 132                         return "SELINUX_CONTEXT";
 133
 134                 case EXIT_PERSONALITY:
 135                         return "PERSONALITY";
 136
 137                 case EXIT_APPARMOR_PROFILE:
 138                         return "APPARMOR";
 139
 140                 case EXIT_ADDRESS_FAMILIES:
 141                         return "ADDRESS_FAMILIES";
 142
 143                 case EXIT_RUNTIME_DIRECTORY:
 144                         return "RUNTIME_DIRECTORY";
 145
 146                 case EXIT_CHOWN:
 147                         return "CHOWN";
 148
 149                 case EXIT_MAKE_STARTER:
 150                         return "MAKE_STARTER";
 151
 152                 case EXIT_BUS_ENDPOINT:
 153                         return "BUS_ENDPOINT";
 154                 }
 155         }
 156
 157         if (level == EXIT_STATUS_LSB) {
 158                 switch ((int) status) {
 159
 160                 case EXIT_INVALIDARGUMENT:
 161                         return "INVALIDARGUMENT";
 162
 163                 case EXIT_NOTIMPLEMENTED:
 164                         return "NOTIMPLEMENTED";
 165
 166                 case EXIT_NOPERMISSION:
 167                         return "NOPERMISSION";
 168
 169                 case EXIT_NOTINSTALLED:
 170                         return "NOTINSTALLED";
 171
 172                 case EXIT_NOTCONFIGURED:
 173                         return "NOTCONFIGURED";
 174
 175                 case EXIT_NOTRUNNING:
 176                         return "NOTRUNNING";
 177                 }
 178         }
 179
 180         return NULL;
 181 }
 182
 183
 184 bool is_clean_exit(int code, int status, ExitStatusSet *success_status) {
 185
 186         if (code == CLD_EXITED)
 187                 return status == 0 ||
 188                        (success_status &&
 189                        set_contains(success_status->status, INT_TO_PTR(status)));
 190
 191         /* If a daemon does not implement handlers for some of the
 192          * signals that's not considered an unclean shutdown */
 193         if (code == CLD_KILLED)
 194                 return
 195                         status == SIGHUP ||
 196                         status == SIGINT ||
 197                         status == SIGTERM ||
 198                         status == SIGPIPE ||
 199                         (success_status &&
 200                         set_contains(success_status->signal, INT_TO_PTR(status)));
 201
 202         return false;
 203 }
 204
 205 bool is_clean_exit_lsb(int code, int status, ExitStatusSet *success_status) {
 206
 207         if (is_clean_exit(code, status, success_status))
 208                 return true;
 209
 210         return
 211                 code == CLD_EXITED &&
 212                 (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
 213 }
 214
 215 void exit_status_set_free(ExitStatusSet *x) {
 216         assert(x);
 217
 218         set_free(x->status);
 219         set_free(x->signal);
 220         x->status = x->signal = NULL;
 221 }
 222
 223 bool exit_status_set_is_empty(ExitStatusSet *x) {
 224         if (!x)
 225                 return true;
 226
 227         return set_isempty(x->status) && set_isempty(x->signal);
 228 }
 229
 230 bool exit_status_set_test(ExitStatusSet *x, int code, int status) {
 231
 232         if (exit_status_set_is_empty(x))
 233                 return false;
 234
 235         if (code == CLD_EXITED && set_contains(x->status, INT_TO_PTR(status)))
 236                 return true;
 237
 238         if (IN_SET(code, CLD_KILLED, CLD_DUMPED) && set_contains(x->signal, INT_TO_PTR(status)))
 239                 return true;
 240
 241         return false;
 242 }