1 files changed, 50 insertions, 0 deletions
diff --git a/subprojects/exess/src/write_utils.c b/subprojects/exess/src/write_utils.c
new file mode 100644
index 00000000..fdac0754
--- /dev/null
+++ b/subprojects/exess/src/write_utils.c
@@ -0,0 +1,50 @@
+/*
+  Copyright 2019-2021 David Robillard <d@drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include "write_utils.h"
+#include "read_utils.h"
+
+#include "exess/exess.h"
+
+#include <string.h>
+
+size_t
+write_two_digit_number(const uint8_t value,
+                       const size_t  buf_size,
+                       char* const   buf,
+                       const size_t  i)
+{
+  if (buf_size >= i + 1) {
+    buf[i]     = (char)((value >= 10) ? ('0' + value / 10) : '0');
+    buf[i + 1] = (char)('0' + (value % 10));
+  }
+
+  return 2;
+}
+
+ExessResult
+write_special(const size_t      string_length,
+              const char* const string,
+              const size_t      buf_size,
+              char* const       buf)
+{
+  if (buf_size < string_length + 1) {
+    return end_write(EXESS_NO_SPACE, buf_size, buf, 0);
+  }
+
+  memcpy(buf, string, string_length + 1);
+  return result(EXESS_SUCCESS, string_length);
+}