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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <signal.h>
#include <stdlib.h>
#include <sysexits.h>
#include "exit-status.h"
#include "macro.h"
#include "set.h"
const char* exit_status_to_string(int status, ExitStatusLevel level) {
/* Exit status ranges:
*
* 0…1 │ ISO C, EXIT_SUCCESS + EXIT_FAILURE
* 2…7 │ LSB exit codes for init scripts
* 8…63 │ (Currently unmapped)
* 64…78 │ BSD defined exit codes
* 79…199 │ (Currently unmapped)
* 200…241 │ systemd's private error codes (might be extended to 254 in future development)
* 242…254 │ (Currently unmapped, but see above)
*
* 255 │ EXIT_EXCEPTION (We use this to propagate exit-by-signal events. It's frequently used by others apps (like bash)
* │ to indicate exit reason that cannot really be expressed in a single exit status value — such as a propagated
* │ signal or such, and we follow that logic here.)
*/
switch (status) { /* We always cover the ISO C ones */
case EXIT_SUCCESS:
return "SUCCESS";
case EXIT_FAILURE:
return "FAILURE";
}
if (IN_SET(level, EXIT_STATUS_SYSTEMD, EXIT_STATUS_LSB, EXIT_STATUS_FULL)) {
switch (status) { /* Optionally we cover our own ones */
case EXIT_CHDIR:
return "CHDIR";
case EXIT_NICE:
return "NICE";
case EXIT_FDS:
return "FDS";
case EXIT_EXEC:
return "EXEC";
case EXIT_MEMORY:
return "MEMORY";
case EXIT_LIMITS:
return "LIMITS";
case EXIT_OOM_ADJUST:
return "OOM_ADJUST";
case EXIT_SIGNAL_MASK:
return "SIGNAL_MASK";
case EXIT_STDIN:
return "STDIN";
case EXIT_STDOUT:
return "STDOUT";
case EXIT_CHROOT:
return "CHROOT";
case EXIT_IOPRIO:
return "IOPRIO";
case EXIT_TIMERSLACK:
return "TIMERSLACK";
case EXIT_SECUREBITS:
return "SECUREBITS";
case EXIT_SETSCHEDULER:
return "SETSCHEDULER";
case EXIT_CPUAFFINITY:
return "CPUAFFINITY";
case EXIT_GROUP:
return "GROUP";
case EXIT_USER:
return "USER";
case EXIT_CAPABILITIES:
return "CAPABILITIES";
case EXIT_CGROUP:
return "CGROUP";
case EXIT_SETSID:
return "SETSID";
case EXIT_CONFIRM:
return "CONFIRM";
case EXIT_STDERR:
return "STDERR";
case EXIT_PAM:
return "PAM";
case EXIT_NETWORK:
return "NETWORK";
case EXIT_NAMESPACE:
return "NAMESPACE";
case EXIT_NO_NEW_PRIVILEGES:
return "NO_NEW_PRIVILEGES";
case EXIT_SECCOMP:
return "SECCOMP";
case EXIT_SELINUX_CONTEXT:
return "SELINUX_CONTEXT";
case EXIT_PERSONALITY:
return "PERSONALITY";
case EXIT_APPARMOR_PROFILE:
return "APPARMOR";
case EXIT_ADDRESS_FAMILIES:
return "ADDRESS_FAMILIES";
case EXIT_RUNTIME_DIRECTORY:
return "RUNTIME_DIRECTORY";
case EXIT_CHOWN:
return "CHOWN";
case EXIT_SMACK_PROCESS_LABEL:
return "SMACK_PROCESS_LABEL";
case EXIT_KEYRING:
return "KEYRING";
case EXIT_STATE_DIRECTORY:
return "STATE_DIRECTORY";
case EXIT_CACHE_DIRECTORY:
return "CACHE_DIRECTORY";
case EXIT_LOGS_DIRECTORY:
return "LOGS_DIRECTORY";
case EXIT_CONFIGURATION_DIRECTORY:
return "CONFIGURATION_DIRECTORY";
case EXIT_EXCEPTION:
return "EXCEPTION";
}
}
if (IN_SET(level, EXIT_STATUS_LSB, EXIT_STATUS_FULL)) {
switch (status) { /* Optionally we support LSB ones */
case EXIT_INVALIDARGUMENT:
return "INVALIDARGUMENT";
case EXIT_NOTIMPLEMENTED:
return "NOTIMPLEMENTED";
case EXIT_NOPERMISSION:
return "NOPERMISSION";
case EXIT_NOTINSTALLED:
return "NOTINSTALLED";
case EXIT_NOTCONFIGURED:
return "NOTCONFIGURED";
case EXIT_NOTRUNNING:
return "NOTRUNNING";
}
}
if (level == EXIT_STATUS_FULL) {
switch (status) { /* Optionally, we support BSD exit statusses */
case EX_USAGE:
return "USAGE";
case EX_DATAERR:
return "DATAERR";
case EX_NOINPUT:
return "NOINPUT";
case EX_NOUSER:
return "NOUSER";
case EX_NOHOST:
return "NOHOST";
case EX_UNAVAILABLE:
return "UNAVAILABLE";
case EX_SOFTWARE:
return "SOFTWARE";
case EX_OSERR:
return "OSERR";
case EX_OSFILE:
return "OSFILE";
case EX_CANTCREAT:
return "CANTCREAT";
case EX_IOERR:
return "IOERR";
case EX_TEMPFAIL:
return "TEMPFAIL";
case EX_PROTOCOL:
return "PROTOCOL";
case EX_NOPERM:
return "NOPERM";
case EX_CONFIG:
return "CONFIG";
}
}
return NULL;
}
bool is_clean_exit(int code, int status, ExitClean clean, ExitStatusSet *success_status) {
if (code == CLD_EXITED)
return status == 0 ||
(success_status &&
set_contains(success_status->status, INT_TO_PTR(status)));
/* If a daemon does not implement handlers for some of the signals that's not considered an unclean shutdown */
if (code == CLD_KILLED)
return
(clean == EXIT_CLEAN_DAEMON && IN_SET(status, SIGHUP, SIGINT, SIGTERM, SIGPIPE)) ||
(success_status &&
set_contains(success_status->signal, INT_TO_PTR(status)));
return false;
}
void exit_status_set_free(ExitStatusSet *x) {
assert(x);
x->status = set_free(x->status);
x->signal = set_free(x->signal);
}
bool exit_status_set_is_empty(ExitStatusSet *x) {
if (!x)
return true;
return set_isempty(x->status) && set_isempty(x->signal);
}
bool exit_status_set_test(ExitStatusSet *x, int code, int status) {
if (exit_status_set_is_empty(x))
return false;
if (code == CLD_EXITED && set_contains(x->status, INT_TO_PTR(status)))
return true;
if (IN_SET(code, CLD_KILLED, CLD_DUMPED) && set_contains(x->signal, INT_TO_PTR(status)))
return true;
return false;
}
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