static bool arg_global = false;
static bool arg_immediate = false;
static bool arg_no_block = false;
+static bool arg_no_pager = false;
static bool arg_no_wtmp = false;
static bool arg_no_sync = false;
static bool arg_no_wall = false;
static bool private_bus = false;
+static pid_t pager_pid = 0;
+
static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
+static void pager_open(void);
static bool on_tty(void) {
static int t = -1;
+ /* Note that this is invoked relatively early, before we start
+ * the pager. That means the value we return reflects whether
+ * we originally were started on a tty, not if we currently
+ * are. But this is intended, since we want color, and so on
+ * when run in our own pager. */
+
if (_unlikely_(t < 0))
t = isatty(STDOUT_FILENO) > 0;
assert(bus);
+ pager_open();
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
assert(bus);
+ pager_open();
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
return 0;
}
-static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
+static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
DBusMessage *m = NULL, *reply = NULL;
const char *interface = "";
int r;
print_status_info(&info);
if (!streq_ptr(info.active_state, "active") &&
- !streq_ptr(info.active_state, "reloading"))
+ !streq_ptr(info.active_state, "reloading") &&
+ streq(verb, "status"))
/* According to LSB: "program not running" */
r = 3;
show_properties = !streq(args[0], "status");
+ if (show_properties)
+ pager_open();
+
if (show_properties && n <= 1) {
/* If not argument is specified inspect the manager
* itself */
- ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
+ ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
goto finish;
}
goto finish;
}
- if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
+ if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
ret = r;
dbus_message_unref(m);
dbus_error_init(&error);
+ pager_open();
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
dbus_error_init(&error);
+ pager_open();
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
}
if (!f) {
+#if defined(TARGET_FEDORA) && defined (HAVE_SYSV_COMPAT)
+
+ if (endswith(i->name, ".service")) {
+ char *sysv;
+ bool exists;
+
+ if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+
+ sysv[strlen(sysv) - sizeof(".service") + 1] = 0;
+ exists = access(sysv, F_OK) >= 0;
+
+ if (exists) {
+ pid_t pid;
+ siginfo_t status;
+
+ const char *argv[] = {
+ "/sbin/chkconfig",
+ NULL,
+ NULL,
+ NULL
+ };
+
+ log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name);
+
+ argv[1] = file_name_from_path(sysv);
+ argv[2] =
+ streq(verb, "enable") ? "on" :
+ streq(verb, "disable") ? "off" : NULL;
+
+ log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2]));
+
+ if ((pid = fork()) < 0) {
+ log_error("Failed to fork: %m");
+ free(sysv);
+ return -errno;
+ } else if (pid == 0) {
+ execv(argv[0], (char**) argv);
+ _exit(EXIT_FAILURE);
+ }
+
+ free(sysv);
+
+ if ((r = wait_for_terminate(pid, &status)) < 0)
+ return r;
+
+ if (status.si_code == CLD_EXITED) {
+ if (status.si_status == 0 && (streq(verb, "enable") || streq(verb, "disable")))
+ n_symlinks ++;
+
+ return status.si_status == 0 ? 0 : -EINVAL;
+ } else
+ return -EPROTO;
+ }
+
+ free(sysv);
+ }
+
+#endif
+
log_error("Couldn't find %s.", i->name);
return -ENOENT;
}
" pending\n"
" -q --quiet Suppress output\n"
" --no-block Do not wait until operation finished\n"
+ " --no-pager Do not pipe output into a pager.\n"
" --system Connect to system manager\n"
" --user Connect to user service manager\n"
" --order When generating graph for dot, show only order\n"
ARG_SYSTEM,
ARG_GLOBAL,
ARG_NO_BLOCK,
+ ARG_NO_PAGER,
ARG_NO_WALL,
ARG_ORDER,
ARG_REQUIRE,
{ "system", no_argument, NULL, ARG_SYSTEM },
{ "global", no_argument, NULL, ARG_GLOBAL },
{ "no-block", no_argument, NULL, ARG_NO_BLOCK },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "no-wall", no_argument, NULL, ARG_NO_WALL },
{ "quiet", no_argument, NULL, 'q' },
{ "order", no_argument, NULL, ARG_ORDER },
arg_no_block = true;
break;
+ case ARG_NO_PAGER:
+ arg_no_pager = true;
+ break;
+
case ARG_NO_WALL:
arg_no_wall = true;
break;
return 0;
}
+static void pager_open(void) {
+ int fd[2];
+ const char *pager;
+
+ if (pager_pid > 0)
+ return;
+
+ if (!on_tty() || arg_no_pager)
+ return;
+
+ if ((pager = getenv("PAGER")))
+ if (!*pager || streq(pager, "cat"))
+ return;
+
+ /* Determine and cache number of columns before we spawn the
+ * pager so that we get the value from the actual tty */
+ columns();
+
+ if (pipe(fd) < 0) {
+ log_error("Failed to create pager pipe: %m");
+ return;
+ }
+
+ pager_pid = fork();
+ if (pager_pid < 0) {
+ log_error("Failed to fork pager: %m");
+ close_pipe(fd);
+ return;
+ }
+
+ /* In the child start the pager */
+ if (pager_pid == 0) {
+
+ dup2(fd[0], STDIN_FILENO);
+ close_pipe(fd);
+
+ setenv("LESS", "FRSX", 0);
+
+ prctl(PR_SET_PDEATHSIG, SIGTERM);
+
+ if (pager) {
+ execlp(pager, pager, NULL);
+ execl("/bin/sh", "sh", "-c", pager, NULL);
+ } else {
+ /* Debian's alternatives command for pagers is
+ * called 'pager'. Note that we do not call
+ * sensible-pagers here, since that is just a
+ * shell script that implements a logic that
+ * is similar to this one anyway, but is
+ * Debian-specific. */
+ execlp("pager", "pager", NULL);
+
+ execlp("less", "less", NULL);
+ execlp("more", "more", NULL);
+ }
+
+ log_error("Unable to execute pager: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ /* Return in the parent */
+ if (dup2(fd[1], STDOUT_FILENO) < 0)
+ log_error("Failed to duplicate pager pipe: %m");
+
+ close_pipe(fd);
+}
+
+static void pager_close(void) {
+ siginfo_t dummy;
+
+ if (pager_pid <= 0)
+ return;
+
+ /* Inform pager that we are done */
+ fclose(stdout);
+ wait_for_terminate(pager_pid, &dummy);
+ pager_pid = 0;
+}
+
int main(int argc, char*argv[]) {
int r, retval = EXIT_FAILURE;
DBusConnection *bus = NULL;
strv_free(arg_property);
+ pager_close();
+
return retval;
}
~ianmdlvl / elogind.git / blobdiff