http.c: Write more debug infotest-mf

1 files changed, 4 insertions, 2 deletions

diff --git a/http.c b/http.c
index 6410192..17c8056 100644
--- a/http.c
+++ b/http.c
@@ -2310,8 +2310,10 @@ static int read_mf_body_boundary_byte(struct http_ctx *const h, const char b,
     }
     else
     {
-        fprintf(stderr, "%s: expected %hhx, got %hhx\n", __func__,
-            c->boundary[m->blen], b);
+        fprintf(stderr, "%s: expected %hhx in position %zu, got %hhx. "
+            "Expected boundary: %s, received boundary: %.*s\n", __func__,
+            c->boundary[m->blen], m->blen, b, c->boundary, (int)m->blen,
+            m->boundary);
         return 1;
     }