./tools/notsd-move

1 files changed, 203 insertions, 0 deletions

diff --git a/src/grp-utils/systemd-notify/notify.c b/src/grp-utils/systemd-notify/notify.c
new file mode 100644
index 0000000000..4db49508b3
--- /dev/null
+++ b/src/grp-utils/systemd-notify/notify.c
@@ -0,0 +1,203 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2010 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 <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <systemd/sd-daemon.h>
+
+#include "basic/alloc-util.h"
+#include "basic/env-util.h"
+#include "basic/formats-util.h"
+#include "basic/log.h"
+#include "basic/parse-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
+
+static bool arg_ready = false;
+static pid_t arg_pid = 0;
+static const char *arg_status = NULL;
+static bool arg_booted = false;
+
+static void help(void) {
+        printf("%s [OPTIONS...] [VARIABLE=VALUE...]\n\n"
+               "Notify the init system about service status updates.\n\n"
+               "  -h --help            Show this help\n"
+               "     --version         Show package version\n"
+               "     --ready           Inform the init system about service start-up completion\n"
+               "     --pid[=PID]       Set main pid of daemon\n"
+               "     --status=TEXT     Set status text\n"
+               "     --booted          Check if the system was booted up with systemd\n",
+               program_invocation_short_name);
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+        enum {
+                ARG_READY = 0x100,
+                ARG_VERSION,
+                ARG_PID,
+                ARG_STATUS,
+                ARG_BOOTED,
+        };
+
+        static const struct option options[] = {
+                { "help",      no_argument,       NULL, 'h'           },
+                { "version",   no_argument,       NULL, ARG_VERSION   },
+                { "ready",     no_argument,       NULL, ARG_READY     },
+                { "pid",       optional_argument, NULL, ARG_PID       },
+                { "status",    required_argument, NULL, ARG_STATUS    },
+                { "booted",    no_argument,       NULL, ARG_BOOTED    },
+                {}
+        };
+
+        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:
+                        return version();
+
+                case ARG_READY:
+                        arg_ready = true;
+                        break;
+
+                case ARG_PID:
+
+                        if (optarg) {
+                                if (parse_pid(optarg, &arg_pid) < 0) {
+                                        log_error("Failed to parse PID %s.", optarg);
+                                        return -EINVAL;
+                                }
+                        } else
+                                arg_pid = getppid();
+
+                        break;
+
+                case ARG_STATUS:
+                        arg_status = optarg;
+                        break;
+
+                case ARG_BOOTED:
+                        arg_booted = true;
+                        break;
+
+                case '?':
+                        return -EINVAL;
+
+                default:
+                        assert_not_reached("Unhandled option");
+                }
+        }
+
+        if (optind >= argc &&
+            !arg_ready &&
+            !arg_status &&
+            !arg_pid &&
+            !arg_booted) {
+                help();
+                return -EINVAL;
+        }
+
+        return 1;
+}
+
+int main(int argc, char* argv[]) {
+        _cleanup_free_ char *status = NULL, *cpid = NULL, *n = NULL;
+        _cleanup_strv_free_ char **final_env = NULL;
+        char* our_env[4];
+        unsigned i = 0;
+        int r;
+
+        log_parse_environment();
+        log_open();
+
+        r = parse_argv(argc, argv);
+        if (r <= 0)
+                goto finish;
+
+        if (arg_booted)
+                return sd_booted() <= 0;
+
+        if (arg_ready)
+                our_env[i++] = (char*) "READY=1";
+
+        if (arg_status) {
+                status = strappend("STATUS=", arg_status);
+                if (!status) {
+                        r = log_oom();
+                        goto finish;
+                }
+
+                our_env[i++] = status;
+        }
+
+        if (arg_pid > 0) {
+                if (asprintf(&cpid, "MAINPID="PID_FMT, arg_pid) < 0) {
+                        r = log_oom();
+                        goto finish;
+                }
+
+                our_env[i++] = cpid;
+        }
+
+        our_env[i++] = NULL;
+
+        final_env = strv_env_merge(2, our_env, argv + optind);
+        if (!final_env) {
+                r = log_oom();
+                goto finish;
+        }
+
+        if (strv_length(final_env) <= 0) {
+                r = 0;
+                goto finish;
+        }
+
+        n = strv_join(final_env, "\n");
+        if (!n) {
+                r = log_oom();
+                goto finish;
+        }
+
+        r = sd_pid_notify(arg_pid ? arg_pid : getppid(), false, n);
+        if (r < 0) {
+                log_error_errno(r, "Failed to notify init system: %m");
+                goto finish;
+        } else if (r == 0) {
+                log_error("No status data could be sent: $NOTIFY_SOCKET was not set");
+                r = -EOPNOTSUPP;
+        }
+
+finish:
+        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}