1 files changed, 45 insertions, 0 deletions
diff --git a/check_kernel_version.c b/check_kernel_version.c
new file mode 100644
index 0000000..ef5dd88
--- /dev/null
+++ b/check_kernel_version.c
@@ -0,0 +1,45 @@
+/* See LICENSE file for copyright and license details. */
+#include "internal.h"
+
+
+int
+liberror_libc_check_kernel_version(long int major, long int minor, long int patch)
+{
+#if defined(__linux__)
+
+	struct utsname name;
+	long int kmajor;
+	long int kminor;
+	long int kpatch;
+	char *p;
+	int r;
+
+	r = uname(&name);
+	if (r < 0)
+		return -1;
+
+	errno = 0;
+	p = name.release;
+	if (!isdigit(*p))
+		return -1;
+	kmajor = strtol(p, &p, 10);
+	if (kmajor < 0 || errno || *p != '.')
+		return -1;
+	kminor = strtol(&p[1], &p, 10);
+	if (kminor < 0 || errno)
+		return -1;
+	if (*p != '.') {
+		kpatch = 0;
+	} else {
+		kpatch = strtol(&p[1], &p, 10);
+		if (kpatch < 0 || errno)
+			return -1;
+	}
+
+	return kmajor != major ? kmajor > major :
+	       kminor != minor ? kminor > minor : kpatch >= patch;
+
+#else
+# error Unsupported kernel
+#endif
+}