Don't treat empty chains as an error (Guy Helmer)

diff --git a/src/cdf.c b/src/cdf.c
index 4c892c1d505f1b034e5e5c0cf423e353810cd4dc..db83b213b8dae197fbad2c56443dfa1b8d5b6c2b 100644 (file)
--- a/src/cdf.c
+++ b/src/cdf.c
@@ -35,7 +35,7 @@
 #include "file.h"
 
 #ifndef lint
-FILE_RCSID("@(#)$File: cdf.c,v 1.67 2014/09/24 19:49:07 christos Exp $")
+FILE_RCSID("@(#)$File: cdf.c,v 1.68 2014/10/22 19:27:36 christos Exp $")
 #endif
 
 #include <assert.h>
@@ -463,6 +463,12 @@ cdf_count_chain(const cdf_sat_t *sat, cdf_secid_t sid, size_t size)
            / sizeof(maxsector));
 
        DPRINTF(("Chain:"));
+       if (sid == CDF_SECID_END_OF_CHAIN) {
+               /* 0-length chain. */
+               DPRINTF((" empty\n"));
+               return 0;
+       }
+
        for (j = i = 0; sid >= 0; i++, j++) {
                DPRINTF((" %d", sid));
                if (j >= CDF_LOOP_LIMIT) {