***/
#include <stdio.h>
+#include <getopt.h>
#include "sd-bus.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "strv.h"
+#include "build.h"
+#include "unit-name.h"
+
+static bool arg_scope = false;
+static bool arg_user = false;
+static const char *arg_unit = NULL;
+static const char *arg_description = NULL;
+
+static int help(void) {
+
+ printf("%s [OPTIONS...] [COMMAND LINE...]\n\n"
+ "Notify the init system about service status updates.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --user Run as user unit\n"
+ " --scope Run this as scope rather than service\n"
+ " --unit=UNIT Run under the specified unit name\n"
+ " --description=TEXT Description for unit\n",
+ program_invocation_short_name);
+
+ return 0;
+}
-static int start_transient_service(
- sd_bus *bus,
- const char *name,
- char **argv,
- sd_bus_error *error) {
+static int parse_argv(int argc, char *argv[]) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
- char **i;
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_USER,
+ ARG_SCOPE,
+ ARG_UNIT,
+ ARG_DESCRIPTION
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "user", no_argument, NULL, ARG_USER },
+ { "scope", no_argument, NULL, ARG_SCOPE },
+ { "unit", required_argument, NULL, ARG_UNIT },
+ { "description", required_argument, NULL, ARG_DESCRIPTION },
+ { NULL, 0, NULL, 0 },
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "+h", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case ARG_USER:
+ arg_user = true;
+ break;
+
+ case ARG_SCOPE:
+ arg_scope = true;
+ break;
+
+ case ARG_UNIT:
+ arg_unit = optarg;
+ break;
+
+ case ARG_DESCRIPTION:
+ arg_description = optarg;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ if (optind >= argc) {
+ log_error("Command line to execute required.");
+ return -EINVAL;
+ }
+
+ return 1;
+}
+
+static int message_start_transient_unit_new(sd_bus *bus, const char *name, sd_bus_message **ret) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
+ log_info("Running as unit %s.", name);
+
r = sd_bus_message_new_method_call(
bus,
"org.freedesktop.systemd1",
if (r < 0)
return r;
+ r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
+ if (r < 0)
+ return r;
+
+ *ret = m;
+ m = NULL;
+
+ return 0;
+}
+
+static int message_start_transient_unit_send(sd_bus *bus, sd_bus_message *m, sd_bus_error *error, sd_bus_message **reply) {
+ int r;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send_with_reply_and_block(bus, m, 0, error, reply);
+}
+
+static int start_transient_service(
+ sd_bus *bus,
+ char **argv,
+ sd_bus_error *error) {
+
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+ _cleanup_free_ char *name = NULL;
+ char **i;
+ int r;
+
+ if (arg_unit)
+ name = unit_name_mangle_with_suffix(arg_unit, ".service");
+ else
+ asprintf(&name, "run-%lu.service", (unsigned long) getpid());
+ if (!name)
+ return -ENOMEM;
+
+ r = message_start_transient_unit_new(bus, name, &m);
+ if (r < 0)
+ return r;
+
r = sd_bus_message_open_container(m, 'r', "sv");
if (r < 0)
return r;
if (r < 0)
return r;
- r = sd_bus_message_close_container(m);
+ return message_start_transient_unit_send(bus, m, error, &reply);
+}
+
+static int start_transient_scope(
+ sd_bus *bus,
+ char **argv,
+ sd_bus_error *error) {
+
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+ _cleanup_free_ char *name = NULL;
+ int r;
+
+ if (arg_unit)
+ name = unit_name_mangle_with_suffix(arg_unit, ".scope");
+ else
+ asprintf(&name, "run-%lu.scope", (unsigned long) getpid());
+ if (!name)
+ return -ENOMEM;
+
+ r = message_start_transient_unit_new(bus, name, &m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, (uint32_t) getpid());
if (r < 0)
return r;
- return sd_bus_send_with_reply_and_block(bus, m, 0, error, &reply);
+ r = message_start_transient_unit_send(bus, m, error, &reply);
+ if (r < 0)
+ return r;
+
+ execvp(argv[0], argv);
+ log_error("Failed to execute: %m");
+ return -errno;
}
int main(int argc, char* argv[]) {
sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_unref_ sd_bus *bus = NULL;
- _cleanup_free_ char *name = NULL;
+ _cleanup_free_ char *description = NULL;
int r;
log_parse_environment();
log_open();
- if (argc < 2) {
- log_error("Missing command line.");
- r = -EINVAL;
+ r = parse_argv(argc, argv);
+ if (r <= 0)
goto fail;
- }
- r = sd_bus_open_user(&bus);
- if (r < 0) {
- log_error("Failed to create new bus: %s", strerror(-r));
- goto fail;
+ if (!arg_description) {
+ description = strv_join(argv + optind, " ");
+ if (!description) {
+ r = log_oom();
+ goto fail;
+ }
+
+ arg_description = description;
}
- if (asprintf(&name, "run-%lu.service", (unsigned long) getpid()) < 0) {
- r = log_oom();
+ if (arg_user)
+ r = sd_bus_open_user(&bus);
+ else
+ r = sd_bus_open_system(&bus);
+ if (r < 0) {
+ log_error("Failed to create new bus connection: %s", strerror(-r));
goto fail;
}
- r = start_transient_service(bus, name, argv + 1, &error);
+ if (arg_scope)
+ r = start_transient_scope(bus, argv + optind, &error);
+ else
+ r = start_transient_service(bus, argv + optind, &error);
if (r < 0) {
- log_error("Failed start transient service: %s", error.message);
+ log_error("Failed start transient unit: %s", error.message ? error.message : strerror(-r));
sd_bus_error_free(&error);
goto fail;
}
~ianmdlvl / elogind.git / blobdiff