libfdisk: add basic library files

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/libfdisk/src/init.c b/libfdisk/src/init.c
new file mode 100644
index 000000000..7d875ee8f
--- /dev/null
+++ b/libfdisk/src/init.c
@@ -0,0 +1,33 @@
+
+#include "fdiskP.h"
+
+int fdisk_debug_mask;
+
+
+/**
+ * fdisk_init_debug:
+ * @mask: debug mask (0xffff to enable full debuging)
+ *
+ * If the @mask is not specified then this function reads
+ * FDISK_DEBUG environment variable to get the mask.
+ *
+ * Already initialized debugging stuff cannot be changed. It does not
+ * have effect to call this function twice.
+ */
+void fdisk_init_debug(int mask)
+{
+	if (fdisk_debug_mask & FDISK_DEBUG_INIT)
+		return;
+	if (!mask) {
+		char *str = getenv("LIBFDISK_DEBUG");
+		if (str)
+			fdisk_debug_mask = strtoul(str, 0, 0);
+	} else
+		fdisk_debug_mask = mask;
+
+	if (fdisk_debug_mask)
+		fprintf(stderr, "libfdisk: debug mask set to 0x%04x.\n",
+		       fdisk_debug_mask);
+
+	fdisk_debug_mask |= FDISK_DEBUG_INIT;
+}