1 files changed, 116 insertions, 0 deletions
diff --git a/src/tools/irm/irm_unregister.c b/src/tools/irm/irm_unregister.c
new file mode 100644
index 00000000..d778e285
--- /dev/null
+++ b/src/tools/irm/irm_unregister.c
@@ -0,0 +1,116 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Unregister IPC Processes in an N-1 DIF
+ *
+ *    Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ *    Sander Vrijders   <sander.vrijders@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <ouroboros/config.h>
+#include <stdio.h>
+#include <ouroboros/irm.h>
+#include <ouroboros/common.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <signal.h>
+
+#include "irm_ops.h"
+#include "irm_utils.h"
+
+#define MAX_DIFS 128
+
+static void usage()
+{
+        printf("Usage: irm unregister\n"
+               "           [name <name>]\n"
+               "           [apn <application process name>]\n"
+               "           [api <application process instance>]\n"
+               "           dif <dif name to unregister from>\n"
+               "           [dif <dif name to unregister from>]\n"
+               "           [... (maximum %d difs)]\n"
+               "           [hard] (unregisters everything using that name)\n"
+               , MAX_DIFS);
+}
+
+int do_unregister(int argc, char ** argv)
+{
+        instance_name_t api = {NULL, 0};
+        char * difs[MAX_DIFS];
+        size_t difs_len = 0;
+        char * name = NULL;
+        bool hard_opt = false;
+        bool ap_id = false;
+        instance_name_t * ptr_api = NULL;
+
+        while (argc > 0) {
+                if (matches(*argv, "name") == 0) {
+                        name = *(argv + 1);
+                } else if (matches(*argv, "ap") == 0) {
+                        api.name = *(argv + 1);
+                        ptr_api = &api;
+                } else if (matches(*argv, "api") == 0) {
+                        api.id = atoi(*(argv + 1));
+                        ap_id = true;
+                } else if (strcmp(*argv, "hard") == 0) {
+                        hard_opt = true;
+                        /* this has no value */
+                        ++argc;
+                        --argv;
+                } else if (matches(*argv, "dif") == 0) {
+                        difs[difs_len++] = *(argv + 1);
+                        if (difs_len > MAX_DIFS) {
+                                printf("Too many difs specified\n");
+                                return -1;
+                        }
+                } else {
+                        printf("\"%s\" is unknown, try \"irm "
+                               "unregister\".\n", *argv);
+                        return -1;
+                }
+
+                argc -= 2;
+                argv += 2;
+        }
+
+        if (difs_len == 0) {
+                usage();
+                return -1;
+        }
+
+        if (name == NULL && api.name == NULL) {
+                printf("apn or name must be set.\n");
+                usage();
+                return -1;
+        }
+
+        if (ap_id && api.name == NULL) {
+                printf("api requires apn.\n");
+                usage();
+                return -1;
+        }
+
+        if (hard_opt && api.name != NULL) {
+                printf("apn and/or api must not be set when using hard.\n");
+                usage();
+                return -1;
+        }
+
+        return irm_unreg(name, ptr_api, difs, difs_len, hard_opt);
+}