feat(lib): implement strnlen secure and strcpy secure function
Implement safer version of 'strnlen' function
to handle NULL terminated strings with additional
bound checking and secure version of string copy function
to support better security and avoid destination
buffer overflow.
Change-Id: I93916f003b192c1c6da6a4f78a627c8885db11d9
Signed-off-by: Jit Loon Lim <jit.loon.lim@altera.com>
Signed-off-by: Girisha Dengi <girisha.dengi@intel.com>
diff --git a/include/lib/libc/string.h b/include/lib/libc/string.h
index 8129404..bba9816 100644
--- a/include/lib/libc/string.h
+++ b/include/lib/libc/string.h
@@ -30,5 +30,7 @@
size_t strlcpy(char * dst, const char * src, size_t dsize);
size_t strlcat(char * dst, const char * src, size_t dsize);
char *strtok_r(char *s, const char *delim, char **last);
+size_t strnlen_secure(const char *str, size_t maxlen);
+int strcpy_secure(char *restrict dest, size_t dest_size, const char *restrict src);
#endif /* STRING_H */