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 #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_TCPWRAP:
 117                         return "TCPWRAP";
 118
 119                 case EXIT_PAM:
 120                         return "PAM";
 121
 122                 case EXIT_NETWORK:
 123                         return "NETWORK";
 124
 125                 case EXIT_NAMESPACE:
 126                         return "NAMESPACE";
 127
 128                 case EXIT_NO_NEW_PRIVILEGES:
 129                         return "NO_NEW_PRIVILEGES";
 130
 131                 case EXIT_SECCOMP:
 132                         return "SECCOMP";
 133
 134                 case EXIT_SELINUX_CONTEXT:
 135                         return "SELINUX_CONTEXT";
 136                 }
 137         }
 138
 139         if (level == EXIT_STATUS_LSB) {
 140                 switch ((int) status) {
 141
 142                 case EXIT_INVALIDARGUMENT:
 143                         return "INVALIDARGUMENT";
 144
 145                 case EXIT_NOTIMPLEMENTED:
 146                         return "NOTIMPLEMENTED";
 147
 148                 case EXIT_NOPERMISSION:
 149                         return "NOPERMISSION";
 150
 151                 case EXIT_NOTINSTALLED:
 152                         return "NOTINSSTALLED";
 153
 154                 case EXIT_NOTCONFIGURED:
 155                         return "NOTCONFIGURED";
 156
 157                 case EXIT_NOTRUNNING:
 158                         return "NOTRUNNING";
 159                 }
 160         }
 161
 162         return NULL;
 163 }
 164
 165
 166 bool is_clean_exit(int code, int status, ExitStatusSet *success_status) {
 167
 168         if (code == CLD_EXITED)
 169                 return status == 0 ||
 170                        (success_status &&
 171                        set_contains(success_status->code, INT_TO_PTR(status)));
 172
 173         /* If a daemon does not implement handlers for some of the
 174          * signals that's not considered an unclean shutdown */
 175         if (code == CLD_KILLED)
 176                 return
 177                         status == SIGHUP ||
 178                         status == SIGINT ||
 179                         status == SIGTERM ||
 180                         status == SIGPIPE ||
 181                         (success_status &&
 182                         set_contains(success_status->signal, INT_TO_PTR(status)));
 183
 184         return false;
 185 }
 186
 187 bool is_clean_exit_lsb(int code, int status, ExitStatusSet *success_status) {
 188
 189         if (is_clean_exit(code, status, success_status))
 190                 return true;
 191
 192         return
 193                 code == CLD_EXITED &&
 194                 (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
 195 }
 196
 197 int parse_show_status(const char *v, ShowStatus *ret) {
 198         int r;
 199
 200         assert(v);
 201         assert(ret);
 202
 203         if (streq(v, "auto")) {
 204                 *ret = SHOW_STATUS_AUTO;
 205                 return 0;
 206         }
 207         r = parse_boolean(v);
 208         if (r < 0)
 209                 return r;
 210         *ret = r ? SHOW_STATUS_YES : SHOW_STATUS_NO;
 211         return 0;
 212 }