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authorLennart Poettering <lennart@poettering.net>2013-03-19 20:03:16 +0100
committerLennart Poettering <lennart@poettering.net>2013-03-20 23:00:09 +0100
commitde1c301ed165eb4d04a0c9d4babe97912b5233bb (patch)
tree7a83edfde27a959d3ee3abf2cc9c99fc6bc6bb24 /src/libsystemd-bus/busctl.c
parent76f0199f2ce007c50b5a38f7ff6c51167c3a05a0 (diff)
bus: add basic implementation of a native bus client library
Diffstat (limited to 'src/libsystemd-bus/busctl.c')
-rw-r--r--src/libsystemd-bus/busctl.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/libsystemd-bus/busctl.c b/src/libsystemd-bus/busctl.c
new file mode 100644
index 0000000000..88446fcc7c
--- /dev/null
+++ b/src/libsystemd-bus/busctl.c
@@ -0,0 +1,68 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "sd-bus.h"
+
+int main(int argc, char *argv[]) {
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
+ _cleanup_strv_free_ char **l = NULL;
+ char **i;
+ int r;
+
+ r = bus_open_system(&bus);
+ if (r < 0) {
+ log_error("Failed to connect to bus: %s", strerror(-r));
+ goto fail;
+ }
+
+ r = sd_bus_list_names(bus, &l);
+ if (r < 0) {
+ log_error("Failed to list names: %s", strerror(-r));
+ goto fail;
+ }
+
+ STRV_FOREACH(i, l) {
+ _cleanup_free_ char *owner = NULL;
+ pid_t pid = 0;
+ uid_t uid;
+ bool uid_valid;
+
+ r = sd_bus_get_owner(bus, *i, &owner);
+ if (r == -ENXIO)
+ continue;
+
+ r = sd_get_owner_pid(bus, *i, &pid);
+ if (r == -ENXIO)
+ continue;
+
+ r = sd_get_owner_uid(bus, *i, &pid);
+ if (r == -ENXIO)
+ continue;
+ uid_valid = r >= 0;
+
+ printf("%s (%s) %llu %llu\n", *i, owner, (unsigned long long) pid, (unsigned long long) uid);
+ }
+
+ r = 0;
+
+fail:
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}