From add759429f58e27aef3963370522049bc88dcb47 Mon Sep 17 00:00:00 2001
From: Packit Service <user-cont-team+packit-service@redhat.com>
Date: Dec 10 2020 11:41:50 +0000
Subject: Apply patch diffutils-cmp-s-empty.patch


patch_name: diffutils-cmp-s-empty.patch
present_in_specfile: true

---

diff --git a/src/cmp.c b/src/cmp.c
index bc39153..431b4c6 100644
--- a/src/cmp.c
+++ b/src/cmp.c
@@ -330,12 +330,15 @@ main (int argc, char **argv)
 
   /* If only a return code is needed,
      and if both input descriptors are associated with plain files,
+     and if both files are larger than 0 bytes (procfs files are always 0),
      conclude that the files differ if they have different sizes
      and if more bytes will be compared than are in the smaller file.  */
 
   if (comparison_type == type_status
       && S_ISREG (stat_buf[0].st_mode)
-      && S_ISREG (stat_buf[1].st_mode))
+      && S_ISREG (stat_buf[1].st_mode)
+      && stat_buf[0].st_size > 0
+      && stat_buf[1].st_size > 0)
     {
       off_t s0 = stat_buf[0].st_size - file_position (0);
       off_t s1 = stat_buf[1].st_size - file_position (1);