1 files changed, 109 insertions, 0 deletions
diff --git a/bdat.c b/bdat.c
new file mode 100644
index 0000000..fbf9543
--- /dev/null
+++ b/bdat.c
@@ -0,0 +1,109 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+libparsesfnt_parse_bdat(
+			const char *data, size_t size,
+			struct libparsesfnt_bdat *infop,
+			const struct libparsesfnt_tabdir_entry *tag)
+{
+	return PARSE(LIBPARSESFNT_BDAT__, tag->offset, 0, 0, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_bdat_v2_0_big_glyph_metrics_entry(
+			const char *data, size_t size,
+			struct libparsesfnt_bdat_v2_0_big_glyph_metrics *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset)
+{
+	return PARSE(LIBPARSESFNT_BDAT_V2_0_BIG_GLYPH_METRICS__, tag->offset, offset, 0, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_bdat_v2_0_small_glyph_metrics_entry(
+			const char *data, size_t size,
+			struct libparsesfnt_bdat_v2_0_small_glyph_metrics *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset)
+{
+	return PARSE(LIBPARSESFNT_BDAT_V2_0_SMALL_GLYPH_METRICS__, tag->offset, offset, 0, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_bdat_v2_0_format_4_glyph_data_entry(
+			const char *data, size_t size,
+			struct libparsesfnt_bdat_v2_0_format_4_glyph_data *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset)
+{
+	return PARSE(LIBPARSESFNT_BDAT_V2_0_FORMAT_4_GLYPH_DATA__, tag->offset, offset, 0, 0, 1, tag);
+}
+
+
+static int
+get_bdat_image_data_offset(
+			size_t size,
+			size_t *offsetp,
+			const struct libparsesfnt_tabdir_entry *tag, size_t header_size,
+			size_t offset, size_t image_size_or_zero)
+{
+	if (image_size_or_zero > SIZE_MAX ||
+	    header_size > SIZE_MAX - image_size_or_zero ||
+	    offset > SIZE_MAX - image_size_or_zero - header_size ||
+	    offset + image_size_or_zero + header_size > (size_t)tag->length ||
+	    (size_t)tag->offset + offset + image_size_or_zero + header_size > size) {
+		errno = EBFONT;
+		return -1;
+	}
+	*offsetp = (size_t)tag->offset + offset + header_size;
+	return 0;
+}
+
+
+int
+libparsesfnt_get_bdat_v2_0_format_1_image_data_offset(
+			size_t size,
+			size_t *offsetp,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset, size_t image_size_or_zero)
+{
+	return get_bdat_image_data_offset(size, offsetp, tag, 5, offset, image_size_or_zero);
+}
+
+
+int
+libparsesfnt_get_bdat_v2_0_format_4_image_data_offset(
+			size_t size,
+			size_t *offsetp,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset, size_t image_size_or_zero)
+{
+	return get_bdat_image_data_offset(size, offsetp, tag, 12, offset, image_size_or_zero);
+}
+
+
+int
+libparsesfnt_get_bdat_v2_0_format_5_image_data_offset(
+			size_t size,
+			size_t *offsetp,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset, size_t image_size_or_zero)
+{
+	return get_bdat_image_data_offset(size, offsetp, tag, 0, offset, image_size_or_zero);
+}
+
+
+int
+libparsesfnt_get_bdat_v2_0_format_6_image_data_offset(
+			size_t size,
+			size_t *offsetp,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t offset, size_t image_size_or_zero)
+{
+	return get_bdat_image_data_offset(size, offsetp, tag, 8, offset, image_size_or_zero);
+}