--- /dev/null
+#include "stdio_impl.h"
+
+size_t __string_read(FILE *f, unsigned char *buf, size_t len)
+{
+ char *src = f->cookie;
+ size_t k = strnlen(src, len+256);
+ if (k < len) len = k;
+ memcpy(buf, src, len);
+ f->rpos = (void *)(src+len);
+ f->rend = (void *)(src+k);
+ f->cookie = src+k;
+ return len;
+}