sexp-conv: Fail with an error message for unexpected ']' characters.

Fixes crash reported by Hanno Böck.

sexp-conv: Fail with an error message for unexpected ']' characters.
Fixes crash reported by Hanno Böck.
5606551f · Niels Möller · 10a857e0 · 5606551f · 5606551f
Commit 5606551f authored Feb 16, 2016 by Niels Möller
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ChangeLog ChangeLog +7 -0

tools/parse.c tools/parse.c +4 -1

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--- a/ChangeLog
+++ b/ChangeLog
+2016-02-16  Niels Möller  <nisse@lysator.liu.se>
+
+	* tools/parse.c (sexp_parse): Fail with an error message for
+	unexpected ']' characters. Fixes crash reported by Hanno Böck.
+	Also handle SEXP_DISPLAY (internal error) explicitly, without a
+	default clause.
+
 2016-01-28  Niels Möller  <nisse@lysator.liu.se>

 	* Released nettle-3.2.

--- a/tools/parse.c
+++ b/tools/parse.c
@@ -165,7 +165,10 @@ sexp_parse(struct sexp_parser *parser,
 	case SEXP_CODING_END:
 	  die("Unexpected end of transport encoding.\n");
 	  
-	default:
+	case SEXP_DISPLAY_END:
+	  die("Unexpected end of display tag.\n");
+
+	case SEXP_DISPLAY:
 	  /* Internal error. */
 	  abort();
 	}