1 files changed, 112 insertions, 0 deletions
diff --git a/src/shared/exit-status.h b/src/shared/exit-status.h
new file mode 100644
index 0000000..3f9a2ad
--- /dev/null
+++ b/src/shared/exit-status.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <stdbool.h>
+
+#include "bitmap.h"
+#include "hashmap.h"
+#include "macro.h"
+
+/* This defines pretty names for the LSB 'start' verb exit codes. Note that they shouldn't be confused with
+ * the LSB 'status' verb exit codes which are defined very differently. For details see:
+ *
+ * https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
+ */
+
+enum {
+        /* EXIT_SUCCESS defined by libc */
+        /* EXIT_FAILURE defined by libc */
+        EXIT_INVALIDARGUMENT = 2,
+        EXIT_NOTIMPLEMENTED = 3,
+        EXIT_NOPERMISSION = 4,
+        EXIT_NOTINSTALLED = 5,
+        EXIT_NOTCONFIGURED = 6,
+        EXIT_NOTRUNNING = 7,
+
+        /* BSD's sysexits.h defines a couple EX_xyz exit codes in the range 64 … 78 */
+
+        /* The LSB suggests that error codes >= 200 are "reserved". We use them here under the assumption
+         * that they hence are unused by init scripts. */
+        EXIT_CHDIR = 200,
+        EXIT_NICE,
+        EXIT_FDS,
+        EXIT_EXEC,
+        EXIT_MEMORY,
+        EXIT_LIMITS,
+        EXIT_OOM_ADJUST,
+        EXIT_SIGNAL_MASK,
+        EXIT_STDIN,
+        EXIT_STDOUT,
+        EXIT_CHROOT,   /* 210 */
+        EXIT_IOPRIO,
+        EXIT_TIMERSLACK,
+        EXIT_SECUREBITS,
+        EXIT_SETSCHEDULER,
+        EXIT_CPUAFFINITY,
+        EXIT_GROUP,
+        EXIT_USER,
+        EXIT_CAPABILITIES,
+        EXIT_CGROUP,
+        EXIT_SETSID,   /* 220 */
+        EXIT_CONFIRM,
+        EXIT_STDERR,
+        _EXIT_RESERVED, /* used to be tcpwrap, don't reuse! */
+        EXIT_PAM,
+        EXIT_NETWORK,
+        EXIT_NAMESPACE,
+        EXIT_NO_NEW_PRIVILEGES,
+        EXIT_SECCOMP,
+        EXIT_SELINUX_CONTEXT,
+        EXIT_PERSONALITY,  /* 230 */
+        EXIT_APPARMOR_PROFILE,
+        EXIT_ADDRESS_FAMILIES,
+        EXIT_RUNTIME_DIRECTORY,
+        _EXIT_RESERVED2, /* used to be used by kdbus, don't reuse */
+        EXIT_CHOWN,
+        EXIT_SMACK_PROCESS_LABEL,
+        EXIT_KEYRING,
+        EXIT_STATE_DIRECTORY,
+        EXIT_CACHE_DIRECTORY,
+        EXIT_LOGS_DIRECTORY, /* 240 */
+        EXIT_CONFIGURATION_DIRECTORY,
+        EXIT_NUMA_POLICY,
+        EXIT_CREDENTIALS,
+        EXIT_BPF,
+
+        EXIT_EXCEPTION = 255,  /* Whenever we want to propagate an abnormal/signal exit, in line with bash */
+};
+
+typedef enum ExitStatusClass {
+        EXIT_STATUS_LIBC    = 1 << 0,  /* libc EXIT_STATUS/EXIT_FAILURE */
+        EXIT_STATUS_SYSTEMD = 1 << 1,  /* systemd's own exit codes */
+        EXIT_STATUS_LSB     = 1 << 2,  /* LSB exit codes */
+        EXIT_STATUS_BSD     = 1 << 3,  /* BSD (EX_xyz) exit codes */
+        EXIT_STATUS_FULL    = EXIT_STATUS_LIBC | EXIT_STATUS_SYSTEMD | EXIT_STATUS_LSB | EXIT_STATUS_BSD,
+} ExitStatusClass;
+
+typedef struct ExitStatusSet {
+        Bitmap status;
+        Bitmap signal;
+} ExitStatusSet;
+
+const char* exit_status_to_string(int code, ExitStatusClass class) _const_;
+const char* exit_status_class(int code) _const_;
+int exit_status_from_string(const char *s) _pure_;
+
+typedef struct ExitStatusMapping {
+        const char *name;
+        ExitStatusClass class;
+} ExitStatusMapping;
+
+extern const ExitStatusMapping exit_status_mappings[256];
+
+typedef enum ExitClean {
+        EXIT_CLEAN_DAEMON,
+        EXIT_CLEAN_COMMAND,
+} ExitClean;
+
+bool is_clean_exit(int code, int status, ExitClean clean, const ExitStatusSet *success_status);
+
+void exit_status_set_free(ExitStatusSet *x);
+bool exit_status_set_is_empty(const ExitStatusSet *x);
+bool exit_status_set_test(const ExitStatusSet *x, int code, int status);