fix: Replace device calls to memcpy with tu_memcpy_s

Introduces a new function tu_memcpy_s, which is effectively
a backport of memcpy_s. The change also refactors calls
to memcpy over to the more secure tu_memcpy_s.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/common/tusb_common.h b/src/common/tusb_common.h
index b1ee40a1a..78fdcfe36 100644
--- a/src/common/tusb_common.h
+++ b/src/common/tusb_common.h
@@ -83,6 +83,14 @@
 #define tu_memclr(buffer, size)  memset((buffer), 0, (size))
 #define tu_varclr(_var)          tu_memclr(_var, sizeof(*(_var)))
 
+// This is a backport of memset_s from c11
+int32_t tu_memset_s(void *dest, size_t destsz, int ch, size_t count); 
+
+// This is a backport of memcpy_s from c11
+int32_t tu_memcpy_s(void *dest, size_t destsz,
+                  const void * src, size_t count );
+
+
 //------------- Bytes -------------//
 TU_ATTR_ALWAYS_INLINE static inline uint32_t tu_u32(uint8_t b3, uint8_t b2, uint8_t b1, uint8_t b0)
 {