Index: usr.bin/lam/lam.c
===================================================================
--- usr.bin/lam/lam.c
+++ usr.bin/lam/lam.c
@@ -95,7 +95,8 @@
 	 * mode.
 	 */
 	caph_cache_catpages();
-	caph_limit_stdio();
+	if (caph_limit_stdio() == -1)
+		err(1, "unable to limit stdio");
 	if (cap_enter() < 0 && errno != ENOSYS)
 		err(1, "unable to enter capability mode");
 
@@ -133,7 +134,8 @@
 			else if ((ip->fp = fopen(p, "r")) == NULL) {
 				err(1, "%s", p);
 			}
-			if (cap_rights_limit(fileno(ip->fp), &rights_ro) < 0)
+			if (ip->fp != stdin &&
+				cap_rights_limit(fileno(ip->fp), &rights_ro) < 0)
 				err(1, "unable to limit rights on: %s", p);
 			ip->pad = P;
 			if (!ip->sepstring)