Nasty, rare and obscure off-by-one in DNSSEC hostname_cmp().

3e86d316 · Simon Kelley · d67ecac5 · 3e86d316
Commit 3e86d316 authored Dec 20, 2015 by Simon Kelley
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src/dnssec.c src/dnssec.c +2 -2

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--- a/src/dnssec.c
+++ b/src/dnssec.c
@@ -1394,8 +1394,8 @@ static int hostname_cmp(const char *a, const char *b)
      if (sb == b)
 	return 1;
-      ea = sa--;
+      ea = --sa;
-      eb = sb--;
+      eb = --sb;
    }
 }