tree-wide: merge pager_open_if_enabled() to the pager_open()

Many subsystems define own pager_open_if_enabled() function which
checks '--no-pager' command line argument and open pager depends
on its value. All implementations of pager_open_if_enabled() are
the same. Let's merger this function with pager_open() from the
shared/pager.c and remove pager_open_if_enabled() from all subsytems
to prevent code duplication.

15 files changed, 60 insertions, 151 deletions

diff --git a/src/analyze/analyze.c b/src/analyze/analyze.c
index a847084781..9479d4584d 100644
--- a/src/analyze/analyze.c
+++ b/src/analyze/analyze.c
@@ -123,14 +123,6 @@ struct host_info {
         char *architecture;
 };
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static int bus_get_uint64_property(sd_bus *bus, const char *path, const char *interface, const char *property, uint64_t *val) {
         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
         int r;
@@ -965,7 +957,7 @@ static int analyze_critical_chain(sd_bus *bus, char *names[]) {
         }
         unit_times_hashmap = h;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         puts("The time after the unit is active or started is printed after the \"@\" character.\n"
              "The time the unit takes to start is printed after the \"+\" character.\n");
@@ -993,7 +985,7 @@ static int analyze_blame(sd_bus *bus) {
 
         qsort(times, n, sizeof(struct unit_times), compare_unit_time);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         for (i = 0; i < (unsigned) n; i++) {
                 char ts[FORMAT_TIMESPAN_MAX];
@@ -1206,7 +1198,7 @@ static int dump(sd_bus *bus, char **args) {
                 return -E2BIG;
         }
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                         bus,
@@ -1284,7 +1276,7 @@ static int set_log_target(sd_bus *bus, char **args) {
 
 static void help(void) {
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         printf("%s [OPTIONS...] {COMMAND} ...\n\n"
                "Profile systemd, show unit dependencies, check unit files.\n\n"
diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c
index b839fadd04..d6fb10cac5 100644
--- a/src/cgls/cgls.c
+++ b/src/cgls/cgls.c
@@ -184,7 +184,7 @@ int main(int argc, char *argv[]) {
                 goto finish;
 
         if (!arg_no_pager) {
-                r = pager_open(false);
+                r = pager_open(arg_no_pager, false);
                 if (r > 0 && arg_full < 0)
                         arg_full = true;
         }
diff --git a/src/core/main.c b/src/core/main.c
index c725a686f1..3499c2a3d0 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -102,7 +102,7 @@ static bool arg_crash_reboot = false;
 static bool arg_confirm_spawn = false;
 static ShowStatus arg_show_status = _SHOW_STATUS_UNSET;
 static bool arg_switched_root = false;
-static int arg_no_pager = -1;
+static bool arg_no_pager = false;
 static char ***arg_join_controllers = NULL;
 static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL;
 static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
@@ -127,14 +127,6 @@ static bool arg_default_tasks_accounting = true;
 static uint64_t arg_default_tasks_max = UINT64_C(512);
 static sd_id128_t arg_machine_id = {};
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager <= 0)
-                return;
-
-        pager_open(false);
-}
-
 noreturn static void freeze_or_reboot(void) {
 
         if (arg_crash_reboot) {
@@ -883,8 +875,6 @@ static int parse_argv(int argc, char *argv[]) {
 
                 case ARG_TEST:
                         arg_action = ACTION_TEST;
-                        if (arg_no_pager < 0)
-                                arg_no_pager = true;
                         break;
 
                 case ARG_NO_PAGER:
@@ -994,8 +984,6 @@ static int parse_argv(int argc, char *argv[]) {
 
                 case 'h':
                         arg_action = ACTION_HELP;
-                        if (arg_no_pager < 0)
-                                arg_no_pager = true;
                         break;
 
                 case 'D':
@@ -1548,7 +1536,8 @@ int main(int argc, char *argv[]) {
         if (arg_action == ACTION_TEST)
                 skip_setup = true;
 
-        pager_open_if_enabled();
+        if (arg_action == ACTION_TEST || arg_action == ACTION_HELP)
+                pager_open(arg_no_pager, false);
 
         if (arg_action == ACTION_HELP) {
                 retval = help();
diff --git a/src/coredump/coredumpctl.c b/src/coredump/coredumpctl.c
index 0034a1a0ac..dac800ebef 100644
--- a/src/coredump/coredumpctl.c
+++ b/src/coredump/coredumpctl.c
@@ -54,7 +54,7 @@ static enum {
 } arg_action = ACTION_LIST;
 static const char* arg_field = NULL;
 static const char *arg_directory = NULL;
-static int arg_no_pager = false;
+static bool arg_no_pager = false;
 static int arg_no_legend = false;
 static int arg_one = false;
 static FILE* arg_output = NULL;
@@ -852,9 +852,7 @@ int main(int argc, char *argv[]) {
 
         case ACTION_LIST:
         case ACTION_INFO:
-                if (!arg_no_pager)
-                        pager_open(false);
-
+                pager_open(arg_no_pager, false);
                 r = dump_list(j);
                 break;
 
diff --git a/src/delta/delta.c b/src/delta/delta.c
index a54fc89de6..b055075e55 100644
--- a/src/delta/delta.c
+++ b/src/delta/delta.c
@@ -85,14 +85,6 @@ static enum {
         (SHOW_MASKED | SHOW_EQUIVALENT | SHOW_REDIRECTED | SHOW_OVERRIDDEN | SHOW_EXTENDED)
 } arg_flags = 0;
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static int equivalent(const char *a, const char *b) {
         _cleanup_free_ char *x = NULL, *y = NULL;
 
@@ -610,7 +602,7 @@ int main(int argc, char *argv[]) {
         else if (arg_diff)
                 arg_flags |= SHOW_OVERRIDDEN;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (optind < argc) {
                 int i;
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 273242bea6..c111b1f0e1 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -225,14 +225,6 @@ static int add_matches_for_device(sd_journal *j, const char *devpath) {
         return 0;
 }
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(arg_pager_end);
-}
-
 static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) {
 
         if (arg_utc)
@@ -278,7 +270,7 @@ static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset
 
 static void help(void) {
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, arg_pager_end);
 
         printf("%s [OPTIONS...] [MATCHES...]\n\n"
                "Query the journal.\n\n"
@@ -1183,7 +1175,7 @@ static int list_boots(sd_journal *j) {
         if (count == 0)
                 return count;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, arg_pager_end);
 
         /* numbers are one less, but we need an extra char for the sign */
         w = DECIMAL_STR_WIDTH(count - 1) + 1;
@@ -2061,7 +2053,7 @@ int main(int argc, char *argv[]) {
                 } else {
                         bool oneline = arg_action == ACTION_LIST_CATALOG;
 
-                        pager_open_if_enabled();
+                        pager_open(arg_no_pager, arg_pager_end);
 
                         if (optind < argc)
                                 r = catalog_list_items(stdout, database, oneline, argv + optind);
@@ -2368,7 +2360,7 @@ int main(int argc, char *argv[]) {
         }
 
         if (!arg_follow)
-                pager_open_if_enabled();
+                pager_open(arg_no_pager, arg_pager_end);
 
         if (!arg_quiet) {
                 usec_t start, end;
diff --git a/src/libsystemd/sd-bus/busctl.c b/src/libsystemd/sd-bus/busctl.c
index 772ab62d5b..56bd5863a8 100644
--- a/src/libsystemd/sd-bus/busctl.c
+++ b/src/libsystemd/sd-bus/busctl.c
@@ -62,15 +62,6 @@ static bool arg_allow_interactive_authorization = true;
 static bool arg_augment_creds = true;
 static usec_t arg_timeout = 0;
 
-static void pager_open_if_enabled(void) {
-
-        /* Cache result before we open the pager */
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 #define NAME_IS_ACQUIRED INT_TO_PTR(1)
 #define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
 
@@ -95,7 +86,7 @@ static int list_bus_names(sd_bus *bus, char **argv) {
         if (r < 0)
                 return log_error_errno(r, "Failed to list names: %m");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         names = hashmap_new(&string_hash_ops);
         if (!names)
@@ -289,7 +280,7 @@ static void print_subtree(const char *prefix, const char *path, char **l) {
 
 static void print_tree(const char *prefix, char **l) {
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         prefix = strempty(prefix);
 
@@ -409,7 +400,7 @@ static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool m
                 p = NULL;
         }
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         l = set_get_strv(done);
         if (!l)
@@ -438,7 +429,7 @@ static int tree(sd_bus *bus, char **argv) {
                 if (r < 0)
                         return log_error_errno(r, "Failed to get name list: %m");
 
-                pager_open_if_enabled();
+                pager_open(arg_no_pager, false);
 
                 STRV_FOREACH(i, names) {
                         int q;
@@ -468,7 +459,7 @@ static int tree(sd_bus *bus, char **argv) {
                                 printf("\n");
 
                         if (argv[2]) {
-                                pager_open_if_enabled();
+                                pager_open(arg_no_pager, false);
                                 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
                         }
 
@@ -992,7 +983,7 @@ static int introspect(sd_bus *bus, char **argv) {
                         return bus_log_parse_error(r);
         }
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         name_width = strlen("NAME");
         type_width = strlen("TYPE");
@@ -1559,7 +1550,7 @@ static int call(sd_bus *bus, char *argv[]) {
         if (r == 0 && !arg_quiet) {
 
                 if (arg_verbose) {
-                        pager_open_if_enabled();
+                        pager_open(arg_no_pager, false);
 
                         r = bus_message_dump(reply, stdout, 0);
                         if (r < 0)
@@ -1614,7 +1605,7 @@ static int get_property(sd_bus *bus, char *argv[]) {
                         return bus_log_parse_error(r);
 
                 if (arg_verbose)  {
-                        pager_open_if_enabled();
+                        pager_open(arg_no_pager, false);
 
                         r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
                         if (r < 0)
diff --git a/src/locale/localectl.c b/src/locale/localectl.c
index 365c79aa51..cde33bdf41 100644
--- a/src/locale/localectl.c
+++ b/src/locale/localectl.c
@@ -46,14 +46,6 @@ static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
 static char *arg_host = NULL;
 static bool arg_convert = true;
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static void polkit_agent_open_if_enabled(void) {
 
         /* Open the polkit agent as a child process if necessary */
@@ -239,7 +231,7 @@ static int list_locales(sd_bus *bus, char **args, unsigned n) {
         if (r < 0)
                 return log_error_errno(r, "Failed to read list of locales: %m");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
         strv_print(l);
 
         return 0;
@@ -341,7 +333,7 @@ static int list_vconsole_keymaps(sd_bus *bus, char **args, unsigned n) {
 
         strv_sort(l);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         strv_print(l);
 
@@ -479,7 +471,7 @@ static int list_x11_keymaps(sd_bus *bus, char **args, unsigned n) {
         strv_sort(list);
         strv_uniq(list);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         strv_print(list);
         return 0;
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index 6ad3d089bd..c9a5cd796b 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -59,14 +59,6 @@ static bool arg_ask_password = true;
 static unsigned arg_lines = 10;
 static OutputMode arg_output = OUTPUT_SHORT;
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static void polkit_agent_open_if_enabled(void) {
 
         /* Open the polkit agent as a child process if necessary */
@@ -101,7 +93,7 @@ static int list_sessions(int argc, char *argv[], void *userdata) {
         assert(bus);
         assert(argv);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                         bus,
@@ -148,7 +140,7 @@ static int list_users(int argc, char *argv[], void *userdata) {
         assert(bus);
         assert(argv);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                         bus,
@@ -194,7 +186,7 @@ static int list_seats(int argc, char *argv[], void *userdata) {
         assert(bus);
         assert(argv);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                         bus,
@@ -858,7 +850,7 @@ static int show_session(int argc, char *argv[], void *userdata) {
 
         properties = !strstr(argv[0], "status");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (argc <= 1) {
                 /* If not argument is specified inspect the manager
@@ -914,7 +906,7 @@ static int show_user(int argc, char *argv[], void *userdata) {
 
         properties = !strstr(argv[0], "status");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (argc <= 1) {
                 /* If not argument is specified inspect the manager
@@ -974,7 +966,7 @@ static int show_seat(int argc, char *argv[], void *userdata) {
 
         properties = !strstr(argv[0], "status");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (argc <= 1) {
                 /* If not argument is specified inspect the manager
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 4853139321..b756603f3d 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -80,14 +80,6 @@ static const char* arg_format = NULL;
 static const char *arg_uid = NULL;
 static char **arg_setenv = NULL;
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static void polkit_agent_open_if_enabled(void) {
 
         /* Open the polkit agent as a child process if necessary */
@@ -135,7 +127,7 @@ static int list_machines(int argc, char *argv[], void *userdata) {
 
         assert(bus);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                                 bus,
@@ -238,7 +230,7 @@ static int list_images(int argc, char *argv[], void *userdata) {
 
         assert(bus);
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                                 bus,
@@ -707,7 +699,7 @@ static int show_machine(int argc, char *argv[], void *userdata) {
 
         properties = !strstr(argv[0], "status");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (properties && argc <= 1) {
 
@@ -956,7 +948,7 @@ static int show_image(int argc, char *argv[], void *userdata) {
 
         properties = !strstr(argv[0], "status");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (argc <= 1) {
 
@@ -2189,7 +2181,7 @@ static int list_transfers(int argc, char *argv[], void *userdata) {
         double progress;
         int r;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_bus_call_method(
                                 bus,
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
index d1aec9a7dc..1eaaeb6009 100644
--- a/src/network/networkctl.c
+++ b/src/network/networkctl.c
@@ -53,14 +53,6 @@ static bool arg_no_pager = false;
 static bool arg_legend = true;
 static bool arg_all = false;
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static int link_get_type_string(unsigned short iftype, sd_device *d, char **ret) {
         const char *t;
         char *p;
@@ -300,7 +292,7 @@ static int list_links(int argc, char *argv[], void *userdata) {
         if (c < 0)
                 return c;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (arg_legend)
                 printf("%3s %-16s %-18s %-11s %-10s\n",
@@ -854,7 +846,7 @@ static int link_status(int argc, char *argv[], void *userdata) {
         _cleanup_free_ LinkInfo *links = NULL;
         int r, c, i;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = sd_netlink_open(&rtnl);
         if (r < 0)
@@ -917,7 +909,7 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
         if (c < 0)
                 return c;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (arg_legend)
                 printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
diff --git a/src/shared/pager.c b/src/shared/pager.c
index 05b2b15e40..c16bc027be 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -52,11 +52,14 @@ noreturn static void pager_fallback(void) {
         _exit(EXIT_SUCCESS);
 }
 
-int pager_open(bool jump_to_end) {
+int pager_open(bool no_pager, bool jump_to_end) {
         _cleanup_close_pair_ int fd[2] = { -1, -1 };
         const char *pager;
         pid_t parent_pid;
 
+        if (no_pager)
+                return 0;
+
         if (pager_pid > 0)
                 return 1;
 
diff --git a/src/shared/pager.h b/src/shared/pager.h
index 9fb05796bb..893e1d2bb6 100644
--- a/src/shared/pager.h
+++ b/src/shared/pager.h
@@ -23,7 +23,7 @@
 
 #include "macro.h"
 
-int pager_open(bool jump_to_end);
+int pager_open(bool no_pager, bool jump_to_end);
 void pager_close(void);
 bool pager_have(void) _pure_;
 
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index c75d12c136..4ef4dc280e 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -200,14 +200,6 @@ static void release_busses(void) {
                 busses[w] = sd_bus_flush_close_unref(busses[w]);
 }
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static void ask_password_agent_open_if_enabled(void) {
 
         /* Open the password agent as a child process if necessary */
@@ -678,7 +670,7 @@ static int list_units(int argc, char *argv[], void *userdata) {
         sd_bus *bus;
         int r;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -890,7 +882,7 @@ static int list_sockets(int argc, char *argv[], void *userdata) {
         int r = 0, n;
         sd_bus *bus;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -1197,7 +1189,7 @@ static int list_timers(int argc, char *argv[], void *userdata) {
         sd_bus *bus;
         int r = 0;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -1365,7 +1357,7 @@ static int list_unit_files(int argc, char *argv[], void *userdata) {
         char *path;
         int r;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (install_client_side()) {
                 Hashmap *h;
@@ -1679,7 +1671,7 @@ static int list_dependencies(int argc, char *argv[], void *userdata) {
         } else
                 u = SPECIAL_DEFAULT_TARGET;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -1910,7 +1902,7 @@ static int list_machines(int argc, char *argv[], void *userdata) {
                 return -EPERM;
         }
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -2067,7 +2059,7 @@ static void output_jobs_list(const struct job_info* jobs, unsigned n, bool skipp
                 return;
         }
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         id_len = strlen("JOB");
         unit_len = strlen("UNIT");
@@ -2137,7 +2129,7 @@ static int list_jobs(int argc, char *argv[], void *userdata) {
         int r;
         bool skipped = false;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -4559,7 +4551,7 @@ static int show_all(
         if (r < 0)
                 return r;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         c = (unsigned) r;
 
@@ -4654,7 +4646,7 @@ static int show(int argc, char *argv[], void *userdata) {
                 return -EINVAL;
         }
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         if (show_status)
                 /* Increase max number of open files to 16K if we can, we
@@ -4672,7 +4664,7 @@ static int show(int argc, char *argv[], void *userdata) {
 
         if (show_status && argc <= 1) {
 
-                pager_open_if_enabled();
+                pager_open(arg_no_pager, false);
                 show_system_status(bus);
                 new_line = true;
 
@@ -4813,7 +4805,7 @@ static int cat(int argc, char *argv[], void *userdata) {
         if (r < 0)
                 return log_error_errno(r, "Failed to expand names: %m");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         STRV_FOREACH(name, names) {
                 _cleanup_free_ char *fragment_path = NULL;
@@ -5003,7 +4995,7 @@ static int show_environment(int argc, char *argv[], void *userdata) {
         sd_bus *bus;
         int r;
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         r = acquire_bus(BUS_MANAGER, &bus);
         if (r < 0)
@@ -6178,7 +6170,7 @@ end:
 
 static void systemctl_help(void) {
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
 
         printf("%s [OPTIONS...] {COMMAND} ...\n\n"
                "Query or send control commands to the systemd manager.\n\n"
diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c
index 097963b41b..a2270aff46 100644
--- a/src/timedate/timedatectl.c
+++ b/src/timedate/timedatectl.c
@@ -40,14 +40,6 @@ static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
 static char *arg_host = NULL;
 static bool arg_adjust_system_clock = false;
 
-static void pager_open_if_enabled(void) {
-
-        if (arg_no_pager)
-                return;
-
-        pager_open(false);
-}
-
 static void polkit_agent_open_if_enabled(void) {
 
         /* Open the polkit agent as a child process if necessary */
@@ -313,7 +305,7 @@ static int list_timezones(sd_bus *bus, char **args, unsigned n) {
         if (r < 0)
                 return log_error_errno(r, "Failed to read list of time zones: %m");
 
-        pager_open_if_enabled();
+        pager_open(arg_no_pager, false);
         strv_print(zones);
 
         return 0;