os_info: Parse /etc/os-release first

scripts/.gitignore

@@ -16,3 +16,4 @@ settings-test
 thread_analysis
 tls_test
 timeattack
+os_info

scripts/Makefile.am

@@ -31,6 +31,7 @@ malloc_speed_SOURCES = malloc_speed.c
 fetch_SOURCES = fetch.c
 dnssec_SOURCES = dnssec.c
 timeattack_SOURCES = timeattack.c
+
 id2sql_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 key2keyid_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 keyid2sql_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
@@ -46,6 +47,14 @@ aes_test_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 settings_test_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 timeattack_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la $(RTLIB)
 
+if USE_IMCV
+  AM_CPPFLAGS += -I$(top_srcdir)/src/libimcv
+  noinst_PROGRAMS += os_info
+  os_info_SOURCES = os_info.c
+  os_info_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la \
+                  $(top_builddir)/src/libimcv/libimcv.la
+endif
+
 key2keyid.o :	$(top_builddir)/config.status
 
 keyid2sql.o :	$(top_builddir)/config.status

scripts/os_info.c

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2021 Andreas Steffen
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+
+#include <library.h>
+#include <utils/debug.h>
+#include <imc/imc_os_info.h>
+
+/**
+ * Define debug level
+ */
+static level_t dbg_level = 1;
+
+static void dbg_os_info(debug_t group, level_t level, char *fmt, ...)
+{
+	if ((level <= dbg_level) || level <= 1)
+	{
+		va_list args;
+
+		va_start(args, fmt);
+		vfprintf(stderr, fmt, args);
+		fprintf(stderr, "\n");
+		va_end(args);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	imc_os_info_t *os_info;
+	bool all;
+
+	all = argc > 1;
+
+	library_init(NULL, "os_info");
+	atexit(library_deinit);
+
+	dbg = dbg_os_info;
+
+	os_info = imc_os_info_create(all);
+	os_info->destroy(os_info);
+
+	return 0;
+}