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-rw-r--r--lib/util/print_version.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/util/print_version.c b/lib/util/print_version.c
new file mode 100644
index 0000000..cda2742
--- /dev/null
+++ b/lib/util/print_version.c
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "config.h"
+#include "util.h"
+
+#define GPL_URL "https://gnu.org/licenses/gpl.html"
+
+static const char *version_string =
+"%s (pygos init) " PACKAGE_VERSION "\n"
+"Copyright (C) 2018 David Oberhollenzer\n\n"
+"License GPLv3+: GNU GPL version 3 or later <" GPL_URL ">.\n"
+"This is free software: you are free to change and redistribute it.\n"
+"There is NO WARRANTY, to the extent permitted by law.\n";
+
+void print_version(const char *program)
+{
+ fprintf(stdout, version_string, program);
+ exit(EXIT_SUCCESS);
+}