X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=secnet.git;a=blobdiff_plain;f=util.h;h=cbe9f52b785b8430f438ade5c3d7e53271fd16df;hp=af19363ff33f34739be501f5bc112e86279926b8;hb=4a1a591973e0be6f33a55b8f1fc5abc827f6969d;hpb=05f39b4d34fb2554918ed3686a73521395304724

diff --git a/util.h b/util.h
index af19363..cbe9f52 100644
--- a/util.h
+++ b/util.h
@@ -29,6 +29,12 @@ extern void *buf_prepend(struct buffer_if *buf, int32_t amount);
 extern void *buf_unappend(struct buffer_if *buf, int32_t amount);
 extern void *buf_unprepend(struct buffer_if *buf, int32_t amount);
 
+extern void buffer_readonly_view(struct buffer_if *n, const void*, int32_t len);
+extern void buffer_readonly_clone(struct buffer_if *n, const struct buffer_if*);
+  /* Caller must only use unappend, unprepend et al. on n.
+   * New buffer state (in n) before this can be undefined.  After use,
+   * it must NOT be freed. */
+
 extern void buf_append_string(struct buffer_if *buf, cstring_t s);
 
 extern void read_mpbin(MP_INT *a, uint8_t *bin, int binsize);
@@ -39,4 +45,6 @@ extern int32_t write_mpbin(MP_INT *a, uint8_t *buffer, int32_t buflen);
 
 extern struct log_if *init_log(list_t *loglist);
 
+extern int consttime_memeq(const void *s1, const void *s2, size_t n);
+
 #endif /* util_h */