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/**
* Copyright 2016 IBM Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <systemd/sd-bus.h>
#include <systemd/sd-event.h>
#include "mapper.h"
static int call_main(int argc, char *argv[])
{
int r;
sd_bus *conn = NULL;
char *service = NULL;
sd_bus_message *m = NULL, *reply = NULL;
sd_bus_error error = SD_BUS_ERROR_NULL;
if(argc < 5) {
fprintf(stderr, "Usage: %s call OBJECTPATH INTERFACE "
"METHOD [SIGNATURE [ARGUMENT...]\n", argv[0]);
r = -1;
goto finish;
}
r = sd_bus_default_system(&conn);
if(r < 0) {
fprintf(stderr, "Error connecting to system bus: %s\n",
strerror(-r));
goto finish;
}
r = mapper_get_service(conn, argv[2], &service);
if(r < 0) {
fprintf(stderr, "Error finding '%s' service: %s\n",
argv[2], strerror(-r));
goto finish;
}
r = sd_bus_message_new_method_call(
conn, &m, service, argv[2], argv[3], argv[4]);
if(r < 0) {
fprintf(stderr, "Error populating message: %s\n",
strerror(-r));
goto finish;
}
if(argc > 5) {
char **p;
p = argv + 6;
r = sd_bus_message_append_cmdline(m, argv[5], &p);
if(r < 0) {
fprintf(stderr, "Error appending method arguments: %s\n",
strerror(-r));
goto finish;
}
}
r = sd_bus_call(conn, m, 0, &error, &reply);
if(r < 0) {
fprintf(stderr, "Error invoking method: %s\n",
strerror(-r));
goto finish;
}
finish:
exit(r < 0 ? EXIT_FAILURE : EXIT_SUCCESS);
}
static void quit(int r, void *loop)
{
sd_event_exit((sd_event *)loop, r);
}
static int wait_main(int argc, char *argv[])
{
int r;
sd_bus *conn = NULL;
sd_event *loop = NULL;
mapper_async_wait *wait = NULL;
if(argc < 3) {
fprintf(stderr, "Usage: %s wait OBJECTPATH...\n", argv[0]);
exit(EXIT_FAILURE);
}
r = sd_bus_default_system(&conn);
if(r < 0) {
fprintf(stderr, "Error connecting to system bus: %s\n",
strerror(-r));
goto finish;
}
r = sd_event_default(&loop);
if (r < 0) {
fprintf(stderr, "Error obtaining event loop: %s\n",
strerror(-r));
goto finish;
}
r = sd_bus_attach_event(conn, loop, SD_EVENT_PRIORITY_NORMAL);
if (r < 0) {
fprintf(stderr, "Failed to attach system "
"bus to event loop: %s\n",
strerror(-r));
goto finish;
}
if (!strcmp(argv[1], "wait"))
r = mapper_wait_async(conn, loop, argv+2, quit, loop, &wait, true);
else if (!strcmp(argv[1], "wait-until-removed"))
r = mapper_wait_async(conn, loop, argv+2, quit, loop, &wait, false);
if(r < 0) {
fprintf(stderr, "Error configuring waitlist: %s\n",
strerror(-r));
goto finish;
}
r = sd_event_loop(loop);
if(r < 0) {
fprintf(stderr, "Error starting event loop: %s\n",
strerror(-r));
goto finish;
}
finish:
exit(r < 0 ? EXIT_FAILURE : EXIT_SUCCESS);
}
/* print out the distinct dbus service name for the input dbus path */
static int get_service_main(int argc, char *argv[])
{
int r;
sd_bus *conn = NULL;
char *service = NULL;
if(argc != 3) {
fprintf(stderr, "Usage: %s get-service OBJECTPATH\n",
argv[0]);
exit(EXIT_FAILURE);
}
r = sd_bus_default_system(&conn);
if(r < 0) {
fprintf(stderr, "Error connecting to system bus: %s\n",
strerror(-r));
goto finish;
}
r = mapper_get_service(conn, argv[2], &service);
if(r < 0) {
fprintf(stderr, "Error finding '%s' service: %s\n",
argv[2], strerror(-r));
goto finish;
}
printf("%s\n", service);
finish:
exit(r < 0 ? EXIT_FAILURE : EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
static const char *usage =
"Usage: %s {COMMAND} ...\n"
"\nCOMMANDS:\n"
" call invoke the specified method\n"
" wait wait for the specified objects to appear on the DBus\n"
" wait-until-removed"
" wait until the specified objects are not present in the DBus\n"
" get-service return the service identifier for input path\n";
if(argc < 2) {
fprintf(stderr, usage, argv[0]);
exit(EXIT_FAILURE);
}
if(!strcmp(argv[1], "call"))
call_main(argc, argv);
if(!strcmp(argv[1], "wait") ||
!strcmp(argv[1], "wait-until-removed"))
wait_main(argc, argv);
if(!strcmp(argv[1], "get-service"))
get_service_main(argc, argv);
fprintf(stderr, usage, argv[0]);
exit(EXIT_FAILURE);
}
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