First commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 22 insertions, 0 deletions

diff --git a/fpgm.c b/fpgm.c
new file mode 100644
index 0000000..65df105
--- /dev/null
+++ b/fpgm.c
@@ -0,0 +1,22 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+libparsesfnt_parse_fpgm(
+			const char *data, size_t size,
+			uint8_t *programp,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t first, size_t count)
+{
+	if (count > SIZE_MAX - first) {
+		errno = EFBIG;
+		return -1;
+	}
+	if (tag->offset < size || first + count > size - tag->offset) {
+		errno = EBFONT;
+		return -1;
+	}
+	memcpy(programp, &data[tag->offset + first], count - first);
+	return 0;
+}