(print_long_format): Don't dump core if strftime returns the empty string.

diff --git a/src/ls.c b/src/ls.c
index ed1783da7e6faf8a7707759db051b834c4bae87b..ac9a37ab1f68786a07a8892412dc914b2de6453c 100644 (file)
--- a/src/ls.c
+++ b/src/ls.c
@@ -2453,7 +2453,10 @@ print_long_format (const struct fileinfo *f)
 
   if ((when_local = localtime (&when)))
     {
-      while (! (s = strftime (p, buf + bufsize - p - 1, fmt, when_local)))
+      *p = '\1';
+
+      while (! (s = strftime (p, buf + bufsize - p - 1, fmt, when_local))
+            && *p)
        {
          char *newbuf = (char *) alloca (bufsize *= 2);
          memcpy (newbuf, buf, p - buf);