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From cfb124260a0a9e68102a373c0d136f792e2d4ea7 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Tue, 26 Mar 2019 16:19:35 +0100
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Subject: [PATCH] systemctl: split out extra args generation into helper
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 function of its own
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(cherry picked from commit 94369fc0663255bbd327f97dba288ececf51a514)
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Related: #846319
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---
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 src/systemctl/systemctl.c | 36 +++++++++++++++++++++---------------
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 1 file changed, 21 insertions(+), 15 deletions(-)
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diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
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index 4af9deb98d..e7a8fd559f 100644
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--- a/src/systemctl/systemctl.c
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+++ b/src/systemctl/systemctl.c
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@@ -3002,6 +3002,25 @@ static enum action verb_to_action(const char *verb) {
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         return _ACTION_INVALID;
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 }
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+static const char** make_extra_args(const char *extra_args[static 4]) {
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+        size_t n = 0;
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+
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+        if (arg_scope != UNIT_FILE_SYSTEM)
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+                extra_args[n++] = "--user";
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+
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+        if (arg_transport == BUS_TRANSPORT_REMOTE) {
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+                extra_args[n++] = "-H";
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+                extra_args[n++] = arg_host;
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+        } else if (arg_transport == BUS_TRANSPORT_MACHINE) {
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+                extra_args[n++] = "-M";
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+                extra_args[n++] = arg_host;
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+        } else
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+                assert(arg_transport == BUS_TRANSPORT_LOCAL);
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+
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+        extra_args[n] = NULL;
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+        return extra_args;
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+}
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+
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 static int start_unit(int argc, char *argv[], void *userdata) {
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         _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
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         _cleanup_(wait_context_free) WaitContext wait_context = {};
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@@ -3103,22 +3122,9 @@ static int start_unit(int argc, char *argv[], void *userdata) {
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         }
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         if (!arg_no_block) {
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-                const char* extra_args[4] = {};
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-                int arg_count = 0;
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-
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-                if (arg_scope != UNIT_FILE_SYSTEM)
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-                        extra_args[arg_count++] = "--user";
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-
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-                assert(IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_MACHINE));
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-                if (arg_transport == BUS_TRANSPORT_REMOTE) {
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-                        extra_args[arg_count++] = "-H";
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-                        extra_args[arg_count++] = arg_host;
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-                } else if (arg_transport == BUS_TRANSPORT_MACHINE) {
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-                        extra_args[arg_count++] = "-M";
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-                        extra_args[arg_count++] = arg_host;
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-                }
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+                const char* extra_args[4];
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-                r = bus_wait_for_jobs(w, arg_quiet, extra_args);
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+                r = bus_wait_for_jobs(w, arg_quiet, make_extra_args(extra_args));
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                 if (r < 0)
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                         return r;
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