src/shared/utmp-wtmp.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5 #include <sys/types.h>
   6
   7 #include "time-util.h"
   8 #include "util.h"
   9
  10 #if ENABLE_UTMP
  11 #include <utmpx.h>
  12
  13 int utmp_get_runlevel(int *runlevel, int *previous);
  14
  15 int utmp_put_shutdown(void);
  16 int utmp_put_reboot(usec_t timestamp);
  17 int utmp_put_runlevel(int runlevel, int previous);
  18
  19 int utmp_put_dead_process(const char *id, pid_t pid, int code, int status);
  20 int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user);
  21
  22 int utmp_wall(
  23         const char *message,
  24         const char *username,
  25         const char *origin_tty,
  26         bool (*match_tty)(const char *tty, void *userdata),
  27         void *userdata);
  28
  29 static inline bool utxent_start(void) {
  30         setutxent();
  31         return true;
  32 }
  33 static inline void utxent_cleanup(bool *initialized) {
  34         if (initialized)
  35                 endutxent();
  36 }
  37
  38 #else /* ENABLE_UTMP */
  39
  40 static inline int utmp_get_runlevel(int *runlevel, int *previous) {
  41         return -ESRCH;
  42 }
  43 static inline int utmp_put_shutdown(void) {
  44         return 0;
  45 }
  46 static inline int utmp_put_reboot(usec_t timestamp) {
  47         return 0;
  48 }
  49 static inline int utmp_put_runlevel(int runlevel, int previous) {
  50         return 0;
  51 }
  52 static inline int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
  53         return 0;
  54 }
  55 static inline int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) {
  56         return 0;
  57 }
  58 static inline int utmp_wall(
  59                 const char *message,
  60                 const char *username,
  61                 const char *origin_tty,
  62                 bool (*match_tty)(const char *tty, void *userdata),
  63                 void *userdata) {
  64         return 0;
  65 }
  66
  67 #endif /* ENABLE_UTMP */