Split live into live and system

11 files changed, 231 insertions, 135 deletions

diff --git a/package/deps.mak b/package/deps.mak
index 2b5bbdb..e5affd7 100644
--- a/package/deps.mak
+++ b/package/deps.mak
@@ -11,10 +11,9 @@ src/libs6f/s6f_report_state_change.o src/libs6f/s6f_report_state_change.lo: src/
 src/libs6f/s6f_user_get_confdirs.o src/libs6f/s6f_user_get_confdirs.lo: src/libs6f/s6f_user_get_confdirs.c src/include-local/s6f.h
 src/s6-frontend/help.o src/s6-frontend/help.lo: src/s6-frontend/help.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
 src/s6-frontend/live.o src/s6-frontend/live.lo: src/s6-frontend/live.c src/s6-frontend/s6-frontend-internal.h
-src/s6-frontend/live_boot.o src/s6-frontend/live_boot.lo: src/s6-frontend/live_boot.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
 src/s6-frontend/live_help.o src/s6-frontend/live_help.lo: src/s6-frontend/live_help.c src/s6-frontend/s6-frontend-internal.h
-src/s6-frontend/live_hpr.o src/s6-frontend/live_hpr.lo: src/s6-frontend/live_hpr.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
 src/s6-frontend/live_install.o src/s6-frontend/live_install.lo: src/s6-frontend/live_install.c src/s6-frontend/s6-frontend-internal.h
+src/s6-frontend/live_start_everything.o src/s6-frontend/live_start_everything.lo: src/s6-frontend/live_start_everything.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
 src/s6-frontend/live_startstop.o src/s6-frontend/live_startstop.lo: src/s6-frontend/live_startstop.c src/s6-frontend/s6-frontend-internal.h
 src/s6-frontend/live_status.o src/s6-frontend/live_status.lo: src/s6-frontend/live_status.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
 src/s6-frontend/live_stop_everything.o src/s6-frontend/live_stop_everything.lo: src/s6-frontend/live_stop_everything.c src/s6-frontend/s6-frontend-internal.h
@@ -39,6 +38,10 @@ src/s6-frontend/set_copy.o src/s6-frontend/set_copy.lo: src/s6-frontend/set_copy
 src/s6-frontend/set_help.o src/s6-frontend/set_help.lo: src/s6-frontend/set_help.c src/s6-frontend/s6-frontend-internal.h
 src/s6-frontend/set_list.o src/s6-frontend/set_list.lo: src/s6-frontend/set_list.c src/s6-frontend/s6-frontend-internal.h
 src/s6-frontend/set_status.o src/s6-frontend/set_status.lo: src/s6-frontend/set_status.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
+src/s6-frontend/system.o src/s6-frontend/system.lo: src/s6-frontend/system.c src/s6-frontend/s6-frontend-internal.h
+src/s6-frontend/system_boot.o src/s6-frontend/system_boot.lo: src/s6-frontend/system_boot.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
+src/s6-frontend/system_help.o src/s6-frontend/system_help.lo: src/s6-frontend/system_help.c src/s6-frontend/s6-frontend-internal.h
+src/s6-frontend/system_hpr.o src/s6-frontend/system_hpr.lo: src/s6-frontend/system_hpr.c src/s6-frontend/s6-frontend-internal.h src/include/s6-frontend/config.h
 
 s6-frontend-helper-kill: EXTRA_LIBS :=
 s6-frontend-helper-kill: src/helpers/s6-frontend-helper-kill.o -lskarnet
@@ -50,5 +53,5 @@ endif
 s6: EXTRA_LIBS :=
 s6: src/s6-frontend/s6.o -lskarnet
 s6-frontend: EXTRA_LIBS := ${MAYBEPTHREAD_LIB}
-s6-frontend: src/s6-frontend/s6-frontend.o src/s6-frontend/help.o src/s6-frontend/live.o src/s6-frontend/live_boot.o src/s6-frontend/live_help.o src/s6-frontend/live_hpr.o src/s6-frontend/live_install.o src/s6-frontend/live_startstop.o src/s6-frontend/live_status.o src/s6-frontend/live_stop_everything.o src/s6-frontend/process.o src/s6-frontend/process_help.o src/s6-frontend/process_kill.o src/s6-frontend/process_restart.o src/s6-frontend/process_startstop.o src/s6-frontend/process_status.o src/s6-frontend/repository.o src/s6-frontend/repository_help.o src/s6-frontend/repository_init.o src/s6-frontend/repository_list.o src/s6-frontend/repository_sync.o src/s6-frontend/set.o src/s6-frontend/set_change.o src/s6-frontend/set_check.o src/s6-frontend/set_commit.o src/s6-frontend/set_copy.o src/s6-frontend/set_help.o src/s6-frontend/set_list.o src/s6-frontend/set_status.o libs6f.a.xyzzy ${LIBNSSS} -ls6rc -ls6 -lskarnet
+s6-frontend: src/s6-frontend/s6-frontend.o src/s6-frontend/help.o src/s6-frontend/live.o src/s6-frontend/live_help.o src/s6-frontend/live_install.o src/s6-frontend/live_startstop.o src/s6-frontend/live_status.o src/s6-frontend/live_start_everything.o src/s6-frontend/live_stop_everything.o src/s6-frontend/process.o src/s6-frontend/process_help.o src/s6-frontend/process_kill.o src/s6-frontend/process_restart.o src/s6-frontend/process_startstop.o src/s6-frontend/process_status.o src/s6-frontend/repository.o src/s6-frontend/repository_help.o src/s6-frontend/repository_init.o src/s6-frontend/repository_list.o src/s6-frontend/repository_sync.o src/s6-frontend/set.o src/s6-frontend/set_change.o src/s6-frontend/set_check.o src/s6-frontend/set_commit.o src/s6-frontend/set_copy.o src/s6-frontend/set_help.o src/s6-frontend/set_list.o src/s6-frontend/set_status.o src/s6-frontend/system.o src/s6-frontend/system_boot.o src/s6-frontend/system_help.o src/s6-frontend/system_hpr.o libs6f.a.xyzzy ${LIBNSSS} -ls6rc -ls6 -lskarnet
 INTERNAL_LIBS := libs6f.a.xyzzy
diff --git a/src/s6-frontend/deps-exe/s6-frontend b/src/s6-frontend/deps-exe/s6-frontend
index d322eb7..2e7af62 100644
--- a/src/s6-frontend/deps-exe/s6-frontend
+++ b/src/s6-frontend/deps-exe/s6-frontend
@@ -1,11 +1,10 @@
 help.o
 live.o
-live_boot.o
 live_help.o
-live_hpr.o
 live_install.o
 live_startstop.o
 live_status.o
+live_start_everything.o
 live_stop_everything.o
 process.o
 process_help.o
@@ -26,6 +25,10 @@ set_copy.o
 set_help.o
 set_list.o
 set_status.o
+system.o
+system_boot.o
+system_help.o
+system_hpr.o
 libs6f.a.xyzzy
 ${LIBNSSS}
 -ls6rc
diff --git a/src/s6-frontend/live.c b/src/s6-frontend/live.c
index cd1f70a..13571b1 100644
--- a/src/s6-frontend/live.c
+++ b/src/s6-frontend/live.c
@@ -15,12 +15,8 @@ void live (char const *const *argv)
 {
   static struct command_s const commands[] =
   {
-    { .s = "boot", .f = &live_boot },
-    { .s = "halt", .f = &live_halt },
     { .s = "help", .f = &live_help },
     { .s = "install", .f = &live_install },
-    { .s = "poweroff", .f = &live_poweroff },
-    { .s = "reboot", .f = &live_reboot },
     { .s = "restart", .f = &live_restart },
     { .s = "start", .f = &live_start },
     { .s = "start-everything", .f = &live_start_everything },
diff --git a/src/s6-frontend/live_hpr.c b/src/s6-frontend/live_hpr.c
deleted file mode 100644
index 54f50fc..0000000
--- a/src/s6-frontend/live_hpr.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* ISC license. */
-
-#include <s6-frontend/config.h>
-#include "s6-frontend-internal.h"
-
-#ifdef S6_FRONTEND_USE_S6LI
-
-#include <skalibs/exec.h>
-
-static void live_hpr (char const *arg) gccattr_noreturn ;
-static void live_hpr (char const *arg)
-{
-  unsigned int m = 0 ;
-  char const *argv[4] ;
-  argv[m++] =  S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr" ;
-  argv[m++] = arg ;
-  argv[m++] = "--" ;
-  argv[m++] = 0 ;
-  xmexec_n(argv, cleanup_modif.s, cleanup_modif.len, cleanup_modif.n) ;
-}
-
-void live_halt (char const *const *argv)
-{
-  live_hpr("-h") ;
-}
-
-void live_poweroff (char const *const *argv)
-{
-  live_hpr("-p") ;
-}
-
-void live_reboot (char const *const *argv)
-{
-  live_hpr("-r") ;
-}
-
-#else
-
-#include <skalibs/strerr.h>
-
-static void live_hpr (char const *arg) gccattr_noreturn ;
-static void live_hpr (char const *const *arg)
-{
-  strerr_dief3x(100, "s6 live ", arg, " needs s6-frontend to be built with s6-linux-init support") ;
-}
-
-void live_halt (char const *const *argv)
-{
-  live_hpr("halt") ;
-}
-
-void live_poweroff (char const *const *argv)
-{
-  live_hpr("poweroff") ;
-}
-
-void live_reboot (char const *const *argv)
-{
-  live_hpr("reboot") ;
-}
-
-#endif
diff --git a/src/s6-frontend/live_start_everything.c b/src/s6-frontend/live_start_everything.c
new file mode 100644
index 0000000..3c5e45b
--- /dev/null
+++ b/src/s6-frontend/live_start_everything.c
@@ -0,0 +1,81 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include <skalibs/uint64.h>
+#include <skalibs/types.h>
+#include <skalibs/envexec.h>
+#include <skalibs/cspawn.h>
+#include <skalibs/djbunix.h>
+
+#include <s6-frontend/config.h>
+#include "s6-frontend-internal.h"
+
+enum golb_e
+{
+  GOLB_DRYRUN = 0x01,
+} ;
+
+enum gola_e
+{
+  GOLA_TIMEOUT,
+  GOLA_DEFBUNDLE,
+  GOLA_N
+} ;
+
+void exec_live_start_everything (unsigned int timeout, int dryrun, char const *defbundle)
+{
+  unsigned int m = 0 ;
+  char const *argv[13] ;
+  char fmtv[UINT_FMT] ;
+  char fmtt[UINT_FMT] ;
+
+  argv[m++] = S6RC_EXTBINPREFIX "s6-rc" ;
+  if (g->verbosity != 1)
+  {
+    fmtv[uint_fmt(fmtv, g->verbosity)] = 0 ;
+    argv[m++] = "-v" ;
+    argv[m++] = fmtv ;
+  }
+  if (timeout)
+  {
+    fmtt[uint_fmt(fmtt, timeout)] = 0 ;
+    argv[m++] = "-t" ;
+    argv[m++] = fmtt ;
+  }
+  if (dryrun) argv[m++] = "-n1" ;
+  argv[m++] = "-l" ;
+  argv[m++] = g->dirs.live ;
+  argv[m++] = "-b" ;
+  argv[m++] = "--" ;
+  argv[m++] = "start" ;
+  argv[m++] = defbundle ;
+  argv[m++] = 0 ;
+  xmexec_n(argv, cleanup_modif.s, cleanup_modif.len, cleanup_modif.n) ;
+}
+
+void live_start_everything (char const *const *argv)
+{
+  static gol_bool const rgolb[] =
+  {
+    { .so = 'n', .lo = "dry-run", .clear = 0, .set = GOLB_DRYRUN },
+  } ;
+  static gol_arg const rgola[] =
+  {
+    { .so = 't', .lo = "timeout", .i = GOLA_TIMEOUT },
+    { .so = 'D', .lo = "default-bundle", .i = GOLA_DEFBUNDLE },
+  } ;
+  uint64_t wgolb = 0 ;
+  char const *wgola[GOLA_N] = { 0 } ;
+  unsigned int timeout = 0 ;
+
+  wgola[GOLA_DEFBUNDLE] = S6_FRONTEND_DEFBUNDLE ;
+  argv += GOL_argv(argv, rgolb, rgola, &wgolb, wgola) ;
+  if (wgola[GOLA_TIMEOUT])
+  {
+    if (!uint0_scan(wgola[GOLA_TIMEOUT], &timeout))
+      strerr_dief1x(100, "timeout must be an integer (milliseconds)") ;
+  }
+  exec_live_start_everything(timeout, !!(wgolb & GOLB_DRYRUN), wgola[GOLA_DEFBUNDLE]) ;
+}
diff --git a/src/s6-frontend/s6-frontend-internal.h b/src/s6-frontend/s6-frontend-internal.h
index a535e9e..0004646 100644
--- a/src/s6-frontend/s6-frontend-internal.h
+++ b/src/s6-frontend/s6-frontend-internal.h
@@ -27,21 +27,17 @@ extern void version (char const *const *) gccattr_noreturn ;
 
  /* live */
 
+extern void exec_live_start_everything (unsigned int, int, char const *) gccattr_noreturn ;
+
 extern void live (char const *const *) gccattr_noreturn ;
 extern void live_help (char const *const *) gccattr_noreturn ;
 
-extern void live_boot (char const *const *) gccattr_noreturn ;
-extern void live_init (char const *const *) gccattr_noreturn ;
-extern void live_start_everything (char const *const *) gccattr_noreturn ;
-
-extern void live_halt (char const *const *) gccattr_noreturn ;
-extern void live_poweroff (char const *const *) gccattr_noreturn ;
-extern void live_reboot (char const *const *) gccattr_noreturn ;
-
 extern void live_restart (char const *const *) gccattr_noreturn ;
 extern void live_start (char const *const *) gccattr_noreturn ;
 extern void live_status (char const *const *) gccattr_noreturn ;
 extern void live_stop (char const *const *) gccattr_noreturn ;
+
+extern void live_start_everything (char const *const *) gccattr_noreturn ;
 extern void live_stop_everything (char const *const *) gccattr_noreturn ;
 
 extern void live_install (char const *const *) gccattr_noreturn ;
@@ -94,6 +90,19 @@ extern void set_check (char const *const *) gccattr_noreturn ;
 extern void set_commit (char const *const *) gccattr_noreturn ;
 
 
+ /* system */
+
+extern void s6system (char const *const *) gccattr_noreturn ;
+extern void system_help (char const *const *) gccattr_noreturn ;
+
+extern void system_boot (char const *const *) gccattr_noreturn ;
+extern void system_init (char const *const *) gccattr_noreturn ;
+
+extern void system_halt (char const *const *) gccattr_noreturn ;
+extern void system_poweroff (char const *const *) gccattr_noreturn ;
+extern void system_reboot (char const *const *) gccattr_noreturn ;
+
+
  /* main */
 
 struct global_s
diff --git a/src/s6-frontend/s6-frontend.c b/src/s6-frontend/s6-frontend.c
index 9f550f5..30e6ef2 100644
--- a/src/s6-frontend/s6-frontend.c
+++ b/src/s6-frontend/s6-frontend.c
@@ -72,6 +72,7 @@ int main (int argc, char const *const *argv)
     { .s = "process", .f = &process },
     { .s = "repository", .f = &repository },
     { .s = "set", .f = &set },
+    { .s = "system", .f = &s6system },
     { .s = "version", .f = &version },
   } ;
 
diff --git a/src/s6-frontend/system.c b/src/s6-frontend/system.c
new file mode 100644
index 0000000..ea184b8
--- /dev/null
+++ b/src/s6-frontend/system.c
@@ -0,0 +1,33 @@
+/* ISC license. */
+
+#include <unistd.h>
+
+#include <skalibs/envexec.h>
+
+#include <s6/config.h>
+
+#include "s6-frontend-internal.h"
+
+#define USAGE "s6 system subcommand [ subcommand options ] [ services... ] Type \"s6 system help\" for details."
+#define dieusage() strerr_dieusage(100, USAGE)
+
+void s6system (char const *const *argv)
+{
+  static struct command_s const commands[] =
+  {
+    { .s = "boot", .f = &system_boot },
+    { .s = "halt", .f = &system_halt },
+    { .s = "help", .f = &system_help },
+    { .s = "poweroff", .f = &system_poweroff },
+    { .s = "reboot", .f = &system_reboot },
+    { .s = "shutdown", .f = &system_poweroff },
+  } ;
+  struct command_s *cmd ;
+
+  argv += gol_argv(argv, 0, 0, 0, 0, 0, 0) ;
+  if (!*argv) dieusage() ;
+  cmd = BSEARCH(struct command_s, *argv, commands) ;
+  if (!cmd) dieusage() ;
+  (*cmd->f)(++argv) ;
+  _exit(101) ;
+}
diff --git a/src/s6-frontend/live_boot.c b/src/s6-frontend/system_boot.c
index 00c90a3..109605a 100644
--- a/src/s6-frontend/live_boot.c
+++ b/src/s6-frontend/system_boot.c
@@ -36,7 +36,7 @@ static gol_arg const rgola[] =
   { .so = 'D', .lo = "default-bundle", .i = GOLA_DEFBUNDLE },
 } ;
 
-static void live_init_fill (char const **argv, char const *prefix)
+static void system_init_fill (char const **argv, char const *prefix)
 {
   unsigned int m = 0 ;
   argv[m++] = S6RC_EXTBINPREFIX "s6-rc-init" ;
@@ -55,21 +55,21 @@ static void live_init_fill (char const **argv, char const *prefix)
   argv[m++] = 0 ;
 }
 
-void live_init (char const *const *argv)
+void system_init (char const *const *argv)
 {
   char const *wgola[GOLA_N] = { 0 } ;
   char const *newargv[13] ;
   argv += gol_argv(argv, 0, 0, rgola, 1, 0, wgola) ;
-  live_init_fill(newargv, wgola[GOLA_PREFIX]) ;
+  system_init_fill(newargv, wgola[GOLA_PREFIX]) ;
   xmexec_n(newargv, cleanup_modif.s, cleanup_modif.len, cleanup_modif.n) ;
 }
 
-static void live_init_spawn (char const *prefix)
+static void system_init_spawn (char const *prefix)
 {
   pid_t pid ;
   int wstat ;
   char const *newargv[13] ;
-  live_init_fill(newargv, prefix) ;
+  system_init_fill(newargv, prefix) ;
   pid = xmspawn_n(newargv, cleanup_modif.s, cleanup_modif.len, cleanup_modif.n, 0, 0, 0) ;
   if (wait_pid(pid, &wstat) == -1)
     strerr_diefu2sys(111, "wait for ", newargv[0]) ;
@@ -77,55 +77,7 @@ static void live_init_spawn (char const *prefix)
     strerr_dief2x(wait_estatus(wstat), newargv[0], " failed") ;
 }
 
-static void exec_live_start_everything (unsigned int timeout, int dryrun, char const *defbundle) gccattr_noreturn ;
-static void exec_live_start_everything (unsigned int timeout, int dryrun, char const *defbundle)
-{
-  unsigned int m = 0 ;
-  char const *argv[13] ;
-  char fmtv[UINT_FMT] ;
-  char fmtt[UINT_FMT] ;
-
-  argv[m++] = S6RC_EXTBINPREFIX "s6-rc" ;
-  if (g->verbosity != 1)
-  {
-    fmtv[uint_fmt(fmtv, g->verbosity)] = 0 ;
-    argv[m++] = "-v" ;
-    argv[m++] = fmtv ;
-  }
-  if (timeout)
-  {
-    fmtt[uint_fmt(fmtt, timeout)] = 0 ;
-    argv[m++] = "-t" ;
-    argv[m++] = fmtt ;
-  }
-  if (dryrun) argv[m++] = "-n1" ;
-  argv[m++] = "-l" ;
-  argv[m++] = g->dirs.live ;
-  argv[m++] = "-b" ;
-  argv[m++] = "--" ;
-  argv[m++] = "start" ;
-  argv[m++] = defbundle ;
-  argv[m++] = 0 ;
-  xmexec_n(argv, cleanup_modif.s, cleanup_modif.len, cleanup_modif.n) ;
-}
-
-void live_start_everything (char const *const *argv)
-{
-  uint64_t wgolb = 0 ;
-  char const *wgola[GOLA_N] = { 0 } ;
-  unsigned int timeout = 0 ;
-
-  wgola[GOLA_DEFBUNDLE] = S6_FRONTEND_DEFBUNDLE ;
-  argv += gol_argv(argv, rgolb, 1, rgola + 1, 2, &wgolb, wgola) ;
-  if (wgola[GOLA_TIMEOUT])
-  {
-    if (!uint0_scan(wgola[GOLA_TIMEOUT], &timeout))
-      strerr_dief1x(100, "timeout must be an integer (milliseconds)") ;
-  }
-  exec_live_start_everything(timeout, !!(wgolb & GOLB_DRYRUN), wgola[GOLA_DEFBUNDLE]) ;
-}
-
-void live_boot (char const *const *argv)
+void system_boot (char const *const *argv)
 {
   uint64_t wgolb = 0 ;
   char const *wgola[GOLA_N] = { 0 } ;
@@ -136,8 +88,8 @@ void live_boot (char const *const *argv)
   if (wgola[GOLA_TIMEOUT])
   {
     if (!uint0_scan(wgola[GOLA_TIMEOUT], &timeout))
-    strerr_dief1x(100, "--timeout= argument must be an unsigned integer (in milliseconds)") ;
+    strerr_dief1x(100, "timeout must be an unsigned integer (in milliseconds)") ;
   }
-  live_init_spawn(wgola[GOLA_PREFIX]) ;
+  system_init_spawn(wgola[GOLA_PREFIX]) ;
   exec_live_start_everything(timeout, !!(wgolb & GOLB_DRYRUN), wgola[GOLA_DEFBUNDLE]) ;
 }
diff --git a/src/s6-frontend/system_help.c b/src/s6-frontend/system_help.c
new file mode 100644
index 0000000..0c50f42
--- /dev/null
+++ b/src/s6-frontend/system_help.c
@@ -0,0 +1,18 @@
+/* ISC license. */
+
+#include <unistd.h>
+
+#include <skalibs/buffer.h>
+#include <skalibs/strerr.h>
+
+#include "s6-frontend-internal.h"
+
+#define SYSTEM_HELP_MESSAGE "This is the system help message.\n"
+
+void system_help (char const *const *argv)
+{
+  (void)argv ;
+  if (!buffer_putsflush(buffer_1, SYSTEM_HELP_MESSAGE))
+    strerr_diefu1sys(111, "write to stdout") ;
+  _exit(0) ;
+}
diff --git a/src/s6-frontend/system_hpr.c b/src/s6-frontend/system_hpr.c
new file mode 100644
index 0000000..5d50d28
--- /dev/null
+++ b/src/s6-frontend/system_hpr.c
@@ -0,0 +1,62 @@
+/* ISC license. */
+
+#include <s6-frontend/config.h>
+#include "s6-frontend-internal.h"
+
+#ifdef S6_FRONTEND_USE_S6LI
+
+#include <skalibs/exec.h>
+
+static void system_hpr (char const *arg) gccattr_noreturn ;
+static void system_hpr (char const *arg)
+{
+  unsigned int m = 0 ;
+  char const *argv[4] ;
+  argv[m++] =  S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr" ;
+  argv[m++] = arg ;
+  argv[m++] = "--" ;
+  argv[m++] = 0 ;
+  xmexec_n(argv, cleanup_modif.s, cleanup_modif.len, cleanup_modif.n) ;
+}
+
+void system_halt (char const *const *argv)
+{
+  system_hpr("-h") ;
+}
+
+void system_poweroff (char const *const *argv)
+{
+  system_hpr("-p") ;
+}
+
+void system_reboot (char const *const *argv)
+{
+  system_hpr("-r") ;
+}
+
+#else
+
+#include <skalibs/strerr.h>
+
+static void system_hpr (char const *arg) gccattr_noreturn ;
+static void system_hpr (char const *const *arg)
+{
+  strerr_dief3x(100, "s6 system ", arg, " needs s6-frontend to be built with s6-linux-init support") ;
+}
+
+void system_halt (char const *const *argv)
+{
+  system_hpr("halt") ;
+}
+
+void system_poweroff (char const *const *argv)
+{
+  system_hpr("poweroff") ;
+}
+
+void system_reboot (char const *const *argv)
+{
+  system_hpr("reboot") ;
+}
+
+#endif