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Diffstat (limited to 'i/pc104/initrd/conf/busybox/libbb/kernel_version.c')
-rw-r--r--i/pc104/initrd/conf/busybox/libbb/kernel_version.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/libbb/kernel_version.c b/i/pc104/initrd/conf/busybox/libbb/kernel_version.c
new file mode 100644
index 0000000..50b82ae
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/libbb/kernel_version.c
@@ -0,0 +1,37 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include <sys/utsname.h> /* for uname(2) */
+
+#include "libbb.h"
+
+/* Returns current kernel version encoded as major*65536 + minor*256 + patch,
+ * so, for example, to check if the kernel is greater than 2.2.11:
+ *
+ * if (get_linux_version_code() > KERNEL_VERSION(2,2,11)) { <stuff> }
+ */
+int get_linux_version_code(void)
+{
+ struct utsname name;
+ char *s;
+ int i, r;
+
+ if (uname(&name) == -1) {
+ bb_perror_msg("cannot get system information");
+ return 0;
+ }
+
+ s = name.release;
+ r = 0;
+ for (i = 0; i < 3; i++) {
+ r = r * 256 + atoi(strtok(s, "."));
+ s = NULL;
+ }
+ return r;
+}