1 files changed, 43 insertions, 0 deletions
diff --git a/src/libmdsserver/util.h b/src/libmdsserver/util.h
new file mode 100644
index 0000000..f1276f7
--- /dev/null
+++ b/src/libmdsserver/util.h
@@ -0,0 +1,43 @@
+/**
+ * mds — A micro-display server
+ * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef MDS_LIBMDSSERVER_UTIL_H
+#define MDS_LIBMDSSERVER_UTIL_H
+
+
+/**
+ * Read an environment variable, but handle it as undefined if empty
+ * 
+ * @param   var  The environment variable's name
+ * @return       The environment variable's value, `NULL` if empty or not defined
+ */
+char* getenv_nonempty(const char* var);
+
+
+/**
+ * Re-exec the server.
+ * This function only returns on failure.
+ * 
+ * @param  argc      The number of elements in `argv`
+ * @param  argv      The command line arguments
+ * @param  reexeced  Whether the server has previously been re-exec:ed
+ */
+void reexec_server(int argc, char** argv, int reexeced);
+
+
+#endif
+