X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=secnet.git;a=blobdiff_plain;f=util.h;h=5866e5784481376e9c2897ecabdb16b5c1f9c818;hp=29b68e73d0a906c083b5c116b2a582b960b3c6a7;hb=99fb186749bdb8753bad96da0b3b3ddd5284b1eb;hpb=100683441c5b1445a8d6c970aea6c7fa92e974e0

diff --git a/util.h b/util.h
index 29b68e7..5866e57 100644
--- a/util.h
+++ b/util.h
@@ -31,7 +31,7 @@ extern void *buf_unprepend(struct buffer_if *buf, int32_t amount);
 
 static inline int32_t buf_remaining_space(const struct buffer_if *buf)
 {
-    return (buf->base + buf->alloclen) - buf->start;
+    return (buf->base + buf->alloclen) - (buf->start + buf->size);
 }
 
 extern void buffer_readonly_view(struct buffer_if *n, const void*, int32_t len);