X-Git-Url: https://git.distorted.org.uk/~mdw/secnet/blobdiff_plain/8534d6023d74efac11d7e2b5d1903638f3c1eca3..5b5f297f9a9d47ee7e9804d5bdaa552f1953c6b6:/util.c

diff --git a/util.c b/util.c
index 1b46bc0..cfaefd2 100644
--- a/util.c
+++ b/util.c
@@ -247,6 +247,7 @@ void buffer_assert_used(struct buffer_if *buffer, cstring_t file,
 
 void buffer_init(struct buffer_if *buffer, int32_t max_start_pad)
 {
+    assert(max_start_pad<=buffer->len);
     buffer->start=buffer->base+max_start_pad;
     buffer->size=0;
 }