1 files changed, 43 insertions, 0 deletions
diff --git a/libparsepcf_get_glyph_names.c b/libparsepcf_get_glyph_names.c
new file mode 100644
index 0000000..ca690a4
--- /dev/null
+++ b/libparsepcf_get_glyph_names.c
@@ -0,0 +1,43 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+libparsepcf_get_glyph_names(const char *file, size_t size,
+                            const struct libparsepcf_table *table,
+                            struct libparsepcf_glyph_names *out)
+{
+	size_t pos;
+	int msb = table->format & LIBPARSEPCF_BYTE;
+
+	(void) size;
+
+	if (table->size < 8)
+		goto ebfont;
+
+	pos = table->offset;
+
+	if (table->format != libparsepcf_parse_lsb_uint32__(&file[pos]))
+		goto ebfont;
+	pos += 4;
+
+	out->glyph_count = (size_t)PARSE_UINT32(&file[pos], msb);
+	pos += 4;
+
+	if (4 > table->size - (pos - table->offset) ||
+	    out->glyph_count > (table->size - (pos - table->offset) - 4) / 4)
+		goto ebfont;
+	pos += out->glyph_count * 4;
+	out->strings_size = (size_t)PARSE_UINT32(&file[pos], msb);
+	pos += 4;
+
+	out->strings = &file[pos];
+	if (out->strings_size > table->size - (pos - table->offset))
+		goto ebfont;
+
+	return 0;
+
+ebfont:
+	errno = EBFONT;
+	return -1;
+}