337 lines
9 KiB
C
337 lines
9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stddef.h>
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#include <errno.h>
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#include "strv.h"
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#include "sd-bus.h"
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#include "bus-internal.h"
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#include "bus-message.h"
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const char *sd_bus_get_unique_name(sd_bus *bus) {
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if (!bus)
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return NULL;
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return bus->unique_name;
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}
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int sd_bus_request_name(sd_bus *bus, const char *name, int flags) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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uint32_t ret;
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int r;
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if (!bus)
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return -EINVAL;
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if (!name)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"RequestName",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "su", name, flags);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_read(reply, "u", &ret);
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if (r < 0)
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return r;
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return ret;
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}
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int sd_bus_release_name(sd_bus *bus, const char *name) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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uint32_t ret;
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int r;
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if (!bus)
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return -EINVAL;
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if (!name)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"ReleaseName",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "s", name);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_read(reply, "u", &ret);
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if (r < 0)
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return r;
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return ret;
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}
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int sd_bus_list_names(sd_bus *bus, char ***l) {
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_cleanup_bus_message_unref_ sd_bus_message *m1 = NULL, *reply1 = NULL, *m2 = NULL, *reply2 = NULL;
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char **x = NULL;
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int r;
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if (!bus)
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return -EINVAL;
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if (!l)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"ListNames",
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&m1);
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if (r < 0)
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return r;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"ListActivatableNames",
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&m2);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m1, (uint64_t) -1, NULL, &reply1);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m2, (uint64_t) -1, NULL, &reply2);
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if (r < 0)
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return r;
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r = bus_message_read_strv_extend(reply1, &x);
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if (r < 0) {
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strv_free(x);
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return r;
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}
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r = bus_message_read_strv_extend(reply2, &x);
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if (r < 0) {
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strv_free(x);
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return r;
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}
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*l = strv_uniq(x);
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return 0;
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}
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int sd_bus_get_owner(sd_bus *bus, const char *name, char **owner) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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const char *found;
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int r;
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if (!bus)
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return -EINVAL;
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if (!name)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"GetNameOwner",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "s", name);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_read(reply, "s", &found);
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if (r < 0)
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return r;
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if (owner) {
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char *t;
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t = strdup(found);
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if (!t)
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return -ENOMEM;
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*owner = t;
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}
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return 0;
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}
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int sd_bus_get_owner_uid(sd_bus *bus, const char *name, uid_t *uid) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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uint32_t u;
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int r;
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if (!bus)
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return -EINVAL;
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if (!name)
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return -EINVAL;
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if (!uid)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"GetConnectionUnixUser",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "s", name);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_read(reply, "u", &u);
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if (r < 0)
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return r;
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*uid = (uid_t) u;
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return 0;
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}
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int sd_bus_get_owner_pid(sd_bus *bus, const char *name, pid_t *pid) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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uint32_t u;
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int r;
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if (!bus)
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return -EINVAL;
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if (!name)
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return -EINVAL;
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if (!pid)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"GetConnectionUnixProcessID",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "s", name);
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if (r < 0)
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return r;
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r = sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_read(reply, "u", &u);
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if (r < 0)
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return r;
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if (u == 0)
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return -EIO;
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*pid = (uid_t) u;
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return 0;
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}
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int sd_bus_add_match(sd_bus *bus, const char *match) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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int r;
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if (!bus)
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return -EINVAL;
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if (!match)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"AddMatch",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "s", match);
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if (r < 0)
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return r;
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return sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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}
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int sd_bus_remove_match(sd_bus *bus, const char *match) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
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int r;
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if (!bus)
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return -EINVAL;
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if (!match)
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return -EINVAL;
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r = sd_bus_message_new_method_call(
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bus,
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"org.freedesktop.DBus",
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"/",
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"org.freedesktop.DBus",
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"RemoveMatch",
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&m);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "s", match);
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if (r < 0)
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return r;
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return sd_bus_send_with_reply_and_block(bus, m, (uint64_t) -1, NULL, &reply);
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}
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