some more const

dap-sdk/core/include/dap_strfuncs.h

@@ -108,7 +108,7 @@ char *dap_itoa128(char *a_str, int128_t a_value, int a_base);
 #ifdef HAVE_STRNDUP
 #define strndup(s, l) _strndup(s, l)
 #endif
-char *_strndup(char *str, unsigned long len);
+char *_strndup(const char *str, unsigned long len);
 #endif
 
 #define DAP_USEC_PER_SEC 1000000

dap-sdk/core/src/dap_strfuncs.c

@@ -855,7 +855,7 @@ char *strptime( char *buff, const char *fmt, struct tm *tm ) {
   return buff + len;
 }
 
-char *_strndup(char *str, unsigned long len) {
+char *_strndup(const char *str, unsigned long len) {
     char *buf = (char*)memchr(str, '\0', len);
     if (buf)
         len = buf - str;