Polish debug output

src/vmod_re.c

@@ -523,6 +523,17 @@ reip_iter(struct re_iter_priv *reip, unsigned flush,
 
 	CHECK_OBJ_NOTNULL(reip, RE_ITER_PRIV_MAGIC);
 
+#ifdef ITERDBG
+	VSLb(reip->ctx->vsl, SLT_Debug, "reip_iter reip { .s=%d, "
+	     "buf/len=%p/%zu (%.*s), "
+	     "start=%zu } "
+	     "flush=%u, ptr/len=%p/%zd (%.*s)",
+	     reip->s,
+	     reip->buf, reip->len, (int)reip->len, reip->buf ? reip->buf : "",
+	     reip->startoffset,
+	     flush, ptr, len, (int)len, ptr ? (const char *)ptr : "");
+#endif
+
 	if (reip->s > PCRE2_ERROR_NOMATCH) {
 		AZ(reip->buf);
 		AZ(reip->len);
@@ -566,7 +577,7 @@ reip_iter(struct re_iter_priv *reip, unsigned flush,
 
 #ifdef ITERDBG
 	VSLb(reip->ctx->vsl, SLT_Debug, "match=%d, subject=%.*s, len=%zd",
-	     reip->s, len, subject, len);
+	     reip->s, (int)len, subject, len);
 #endif
 
 	CAST_OBJ_NOTNULL(ov, reip->task->priv, OV_MAGIC);
@@ -648,7 +659,7 @@ match_iter_f(void *priv, unsigned flush, const void *ptr, ssize_t len)
 
 #ifdef ITERDBG
 	VSLb(reip->ctx->vsl, SLT_Debug, "flush=%u, s=%d, ptr=%.*s, len=%zd",
-	     flush, reip->s, len, ptr, len);
+	     flush, reip->s, (int)len, (const char *)ptr, len);
 #endif
 
 	/* already have a match ? */