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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <signal.h>
#include <stdlib.h>
#include <sysexits.h>
#include "exit-status.h"
#include "macro.h"
#include "parse-util.h"
#include "set.h"
#include "string-util.h"
const ExitStatusMapping exit_status_mappings[256] = {
/* 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…244 │ systemd's private error codes (might be extended to 254 in future development)
* 245…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.)
*/
[EXIT_SUCCESS] = { "SUCCESS", EXIT_STATUS_LIBC },
[EXIT_FAILURE] = { "FAILURE", EXIT_STATUS_LIBC },
[EXIT_CHDIR] = { "CHDIR", EXIT_STATUS_SYSTEMD },
[EXIT_NICE] = { "NICE", EXIT_STATUS_SYSTEMD },
[EXIT_FDS] = { "FDS", EXIT_STATUS_SYSTEMD },
[EXIT_EXEC] = { "EXEC", EXIT_STATUS_SYSTEMD },
[EXIT_MEMORY] = { "MEMORY", EXIT_STATUS_SYSTEMD },
[EXIT_LIMITS] = { "LIMITS", EXIT_STATUS_SYSTEMD },
[EXIT_OOM_ADJUST] = { "OOM_ADJUST", EXIT_STATUS_SYSTEMD },
[EXIT_SIGNAL_MASK] = { "SIGNAL_MASK", EXIT_STATUS_SYSTEMD },
[EXIT_STDIN] = { "STDIN", EXIT_STATUS_SYSTEMD },
[EXIT_STDOUT] = { "STDOUT", EXIT_STATUS_SYSTEMD },
[EXIT_CHROOT] = { "CHROOT", EXIT_STATUS_SYSTEMD },
[EXIT_IOPRIO] = { "IOPRIO", EXIT_STATUS_SYSTEMD },
[EXIT_TIMERSLACK] = { "TIMERSLACK", EXIT_STATUS_SYSTEMD },
[EXIT_SECUREBITS] = { "SECUREBITS", EXIT_STATUS_SYSTEMD },
[EXIT_SETSCHEDULER] = { "SETSCHEDULER", EXIT_STATUS_SYSTEMD },
[EXIT_CPUAFFINITY] = { "CPUAFFINITY", EXIT_STATUS_SYSTEMD },
[EXIT_GROUP] = { "GROUP", EXIT_STATUS_SYSTEMD },
[EXIT_USER] = { "USER", EXIT_STATUS_SYSTEMD },
[EXIT_CAPABILITIES] = { "CAPABILITIES", EXIT_STATUS_SYSTEMD },
[EXIT_CGROUP] = { "CGROUP", EXIT_STATUS_SYSTEMD },
[EXIT_SETSID] = { "SETSID", EXIT_STATUS_SYSTEMD },
[EXIT_CONFIRM] = { "CONFIRM", EXIT_STATUS_SYSTEMD },
[EXIT_STDERR] = { "STDERR", EXIT_STATUS_SYSTEMD },
[EXIT_PAM] = { "PAM", EXIT_STATUS_SYSTEMD },
[EXIT_NETWORK] = { "NETWORK", EXIT_STATUS_SYSTEMD },
[EXIT_NAMESPACE] = { "NAMESPACE", EXIT_STATUS_SYSTEMD },
[EXIT_NO_NEW_PRIVILEGES] = { "NO_NEW_PRIVILEGES", EXIT_STATUS_SYSTEMD },
[EXIT_SECCOMP] = { "SECCOMP", EXIT_STATUS_SYSTEMD },
[EXIT_SELINUX_CONTEXT] = { "SELINUX_CONTEXT", EXIT_STATUS_SYSTEMD },
[EXIT_PERSONALITY] = { "PERSONALITY", EXIT_STATUS_SYSTEMD },
[EXIT_APPARMOR_PROFILE] = { "APPARMOR", EXIT_STATUS_SYSTEMD },
[EXIT_ADDRESS_FAMILIES] = { "ADDRESS_FAMILIES", EXIT_STATUS_SYSTEMD },
[EXIT_RUNTIME_DIRECTORY] = { "RUNTIME_DIRECTORY", EXIT_STATUS_SYSTEMD },
[EXIT_CHOWN] = { "CHOWN", EXIT_STATUS_SYSTEMD },
[EXIT_SMACK_PROCESS_LABEL] = { "SMACK_PROCESS_LABEL", EXIT_STATUS_SYSTEMD },
[EXIT_KEYRING] = { "KEYRING", EXIT_STATUS_SYSTEMD },
[EXIT_STATE_DIRECTORY] = { "STATE_DIRECTORY", EXIT_STATUS_SYSTEMD },
[EXIT_CACHE_DIRECTORY] = { "CACHE_DIRECTORY", EXIT_STATUS_SYSTEMD },
[EXIT_LOGS_DIRECTORY] = { "LOGS_DIRECTORY", EXIT_STATUS_SYSTEMD },
[EXIT_CONFIGURATION_DIRECTORY] = { "CONFIGURATION_DIRECTORY", EXIT_STATUS_SYSTEMD },
[EXIT_NUMA_POLICY] = { "NUMA_POLICY", EXIT_STATUS_SYSTEMD },
[EXIT_CREDENTIALS] = { "CREDENTIALS", EXIT_STATUS_SYSTEMD },
[EXIT_BPF] = { "BPF", EXIT_STATUS_SYSTEMD },
[EXIT_EXCEPTION] = { "EXCEPTION", EXIT_STATUS_SYSTEMD },
[EXIT_INVALIDARGUMENT] = { "INVALIDARGUMENT", EXIT_STATUS_LSB },
[EXIT_NOTIMPLEMENTED] = { "NOTIMPLEMENTED", EXIT_STATUS_LSB },
[EXIT_NOPERMISSION] = { "NOPERMISSION", EXIT_STATUS_LSB },
[EXIT_NOTINSTALLED] = { "NOTINSTALLED", EXIT_STATUS_LSB },
[EXIT_NOTCONFIGURED] = { "NOTCONFIGURED", EXIT_STATUS_LSB },
[EXIT_NOTRUNNING] = { "NOTRUNNING", EXIT_STATUS_LSB },
[EX_USAGE] = { "USAGE", EXIT_STATUS_BSD },
[EX_DATAERR] = { "DATAERR", EXIT_STATUS_BSD },
[EX_NOINPUT] = { "NOINPUT", EXIT_STATUS_BSD },
[EX_NOUSER] = { "NOUSER", EXIT_STATUS_BSD },
[EX_NOHOST] = { "NOHOST", EXIT_STATUS_BSD },
[EX_UNAVAILABLE] = { "UNAVAILABLE", EXIT_STATUS_BSD },
[EX_SOFTWARE] = { "SOFTWARE", EXIT_STATUS_BSD },
[EX_OSERR] = { "OSERR", EXIT_STATUS_BSD },
[EX_OSFILE] = { "OSFILE", EXIT_STATUS_BSD },
[EX_CANTCREAT] = { "CANTCREAT", EXIT_STATUS_BSD },
[EX_IOERR] = { "IOERR", EXIT_STATUS_BSD },
[EX_TEMPFAIL] = { "TEMPFAIL", EXIT_STATUS_BSD },
[EX_PROTOCOL] = { "PROTOCOL", EXIT_STATUS_BSD },
[EX_NOPERM] = { "NOPERM", EXIT_STATUS_BSD },
[EX_CONFIG] = { "CONFIG", EXIT_STATUS_BSD },
};
const char* exit_status_to_string(int code, ExitStatusClass class) {
if (code < 0 || (size_t) code >= ELEMENTSOF(exit_status_mappings))
return NULL;
return class & exit_status_mappings[code].class ? exit_status_mappings[code].name : NULL;
}
const char* exit_status_class(int code) {
if (code < 0 || (size_t) code >= ELEMENTSOF(exit_status_mappings))
return NULL;
switch (exit_status_mappings[code].class) {
case EXIT_STATUS_LIBC:
return "libc";
case EXIT_STATUS_SYSTEMD:
return "systemd";
case EXIT_STATUS_LSB:
return "LSB";
case EXIT_STATUS_BSD:
return "BSD";
default: return NULL;
}
}
int exit_status_from_string(const char *s) {
uint8_t val;
int r;
for (size_t i = 0; i < ELEMENTSOF(exit_status_mappings); i++)
if (streq_ptr(s, exit_status_mappings[i].name))
return i;
r = safe_atou8(s, &val);
if (r < 0)
return r;
return val;
}
bool is_clean_exit(int code, int status, ExitClean clean, const ExitStatusSet *success_status) {
if (code == CLD_EXITED)
return status == 0 ||
(success_status &&
bitmap_isset(&success_status->status, status));
/* If a daemon does not implement handlers for some of the signals, we do not consider this an
unclean shutdown */
if (code == CLD_KILLED)
return
(clean == EXIT_CLEAN_DAEMON && IN_SET(status, SIGHUP, SIGINT, SIGTERM, SIGPIPE)) ||
(success_status &&
bitmap_isset(&success_status->signal, status));
return false;
}
void exit_status_set_free(ExitStatusSet *x) {
assert(x);
bitmap_clear(&x->status);
bitmap_clear(&x->signal);
}
bool exit_status_set_is_empty(const ExitStatusSet *x) {
if (!x)
return true;
return bitmap_isclear(&x->status) && bitmap_isclear(&x->signal);
}
bool exit_status_set_test(const ExitStatusSet *x, int code, int status) {
if (code == CLD_EXITED && bitmap_isset(&x->status, status))
return true;
if (IN_SET(code, CLD_KILLED, CLD_DUMPED) && bitmap_isset(&x->signal, status))
return true;
return false;
}
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