X-Git-Url: https://git.distorted.org.uk/~mdw/secnet/blobdiff_plain/7138d0c54cd2212439434d27cb2d6ea775c3039b..28db900b071a43718c4227e759fa76cb8c6359af:/util.h

diff --git a/util.h b/util.h
index d272a59..7991743 100644
--- a/util.h
+++ b/util.h
@@ -1,15 +1,11 @@
-/* $Log: util.h,v $
- * Revision 1.1  1996/03/14 17:05:12  sde1000
- * Initial revision
- *
- */
-
 #ifndef util_h
 #define util_h
 
 #include "secnet.h"
 #include <gmp.h>
 
+#include "hackypar.h"
+
 #define BUF_ASSERT_FREE(buf) do { buffer_assert_free((buf), \
 						     __FILE__,__LINE__); } \
 while(0)
@@ -21,24 +17,31 @@ while(0)
 	 (buf)->size=0; } while(0)
 #define BUF_FREE(buf) do { (buf)->free=True; } while(0)
 
-extern void buffer_assert_free(struct buffer_if *buffer, string_t file,
-			       uint32_t line);
-extern void buffer_assert_used(struct buffer_if *buffer, string_t file,
-			       uint32_t line);
-extern void buffer_new(struct buffer_if *buffer, uint32_t len);
-extern void buffer_init(struct buffer_if *buffer, uint32_t max_start_pad);
-extern void *buf_append(struct buffer_if *buf, uint32_t amount);
-extern void *buf_prepend(struct buffer_if *buf, uint32_t amount);
-extern void *buf_unappend(struct buffer_if *buf, uint32_t amount);
-extern void *buf_unprepend(struct buffer_if *buf, uint32_t amount);
-
-extern void buf_append_string(struct buffer_if *buf, string_t s);
+extern void buffer_assert_free(struct buffer_if *buffer, cstring_t file,
+			       int line);
+extern void buffer_assert_used(struct buffer_if *buffer, cstring_t file,
+			       int line);
+extern void buffer_new(struct buffer_if *buffer, int32_t len);
+extern void buffer_init(struct buffer_if *buffer, int32_t max_start_pad);
+extern void buffer_copy(struct buffer_if *dst, const struct buffer_if *src);
+extern void *buf_append(struct buffer_if *buf, int32_t amount);
+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);
 
 extern char *write_mpstring(MP_INT *a);
 
-extern uint32_t write_mpbin(MP_INT *a, uint8_t *buffer, uint32_t buflen);
+extern int32_t write_mpbin(MP_INT *a, uint8_t *buffer, int32_t buflen);
 
 extern struct log_if *init_log(list_t *loglist);