Don't segfault if none of the file arguments to ls exists.

diff --git a/toys/posix/ls.c b/toys/posix/ls.c
index bba3431..44915fa 100644 (file)
--- a/toys/posix/ls.c
+++ b/toys/posix/ls.c
@@ -298,7 +298,8 @@ static void listfiles(int dirfd, struct dirtree *indir)
     // Silently descend into single directory listed by itself on command line.
     // In this case only show dirname/total header when given -R.
     dt = indir->child;
-    if (S_ISDIR(dt->st.st_mode) && !dt->next && !(flags&(FLAG_d|FLAG_R))) {
+    if (dt && S_ISDIR(dt->st.st_mode) && !dt->next && !(flags&(FLAG_d|FLAG_R)))
+    {
       listfiles(open(dt->name, 0), TT.singledir = dt);
 
       return;