X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/8cd9f01dac408893755906282d79284c1ee7ddd6..f52f2db067dc1388b16ab00ddb53e26a381a6e3e:/catsign.c

diff --git a/catsign.c b/catsign.c
index 5c6a6f8..8171404 100644
--- a/catsign.c
+++ b/catsign.c
@@ -199,7 +199,7 @@ static void textwrite(msgcanon *m, const void *bp, size_t n)
 static size_t binreadembed(msgcanon *m, void *bp)
   { return (chunk_read(m->e, bp)); }
 static size_t binreaddetach(msgcanon *m, void *bp)
-  { return (fread(bp, 1, MSGBUFSZ, m->fp)); }
+  { return (fread(bp, 1, MSGBUFSZ - 1, m->fp)); }
 
 static void binwriteembed(msgcanon *m, const void *bp, size_t n)
   { chunk_write(m->e, bp, n); }