irmd, lib: Create and destroy IPC Processes

This adds the functionality to create and destroy IPCPs. Upon creation
a new process is forked and execve'd. Upon destruction the IPCP is
destroyed by killing it with SIGTERM.

1 files changed, 33 insertions, 0 deletions

diff --git a/src/lib/utils.c b/src/lib/utils.c
new file mode 100644
index 00000000..ca082642
--- /dev/null
+++ b/src/lib/utils.c
@@ -0,0 +1,33 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Handy utilities
+ *
+ *    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.
+ */
+
+int n_digits(unsigned i)
+{
+    int n = 1;
+
+    while (i > 9) {
+        n++;
+        i /= 10;
+    }
+
+    return n;
+}