Author: emaste
Date: Mon Apr 24 14:51:53 2017
New Revision: 317371
URL: https://svnweb.freebsd.org/changeset/base/317371

Log:
  elfcopy: allow empty symbol list files
  
  Reported by:  bz
  MFC after:    2 weeks
  Sponsored by: The FreeBSD Foundation
  Differential Revision:        https://reviews.freebsd.org/D10441

Modified:
  head/contrib/elftoolchain/elfcopy/main.c

Modified: head/contrib/elftoolchain/elfcopy/main.c
==============================================================================
--- head/contrib/elftoolchain/elfcopy/main.c    Mon Apr 24 12:52:42 2017        
(r317370)
+++ head/contrib/elftoolchain/elfcopy/main.c    Mon Apr 24 14:51:53 2017        
(r317371)
@@ -1285,8 +1285,9 @@ parse_symlist_file(struct elfcopy *ecp, 
                err(EXIT_FAILURE, "can not open %s", fn);
        if ((data = malloc(sb.st_size + 1)) == NULL)
                err(EXIT_FAILURE, "malloc failed");
-       if (fread(data, 1, sb.st_size, fp) == 0 || ferror(fp))
-               err(EXIT_FAILURE, "fread failed");
+       if (sb.st_size > 0)
+               if (fread(data, sb.st_size, 1, fp) != 1)
+                       err(EXIT_FAILURE, "fread failed");
        fclose(fp);
        data[sb.st_size] = '\0';
 
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