From: ceriel <none@none>
Date: Tue, 30 Aug 1988 11:37:32 +0000 (+0000)
Subject: better checks for recursion in tc=
X-Git-Tag: release-5-5~2884
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=e102a3f5cb96bfc2b5368c9587fc94ed96a4f491;p=ack.git

better checks for recursion in tc=
---

diff --git a/lang/cem/libcc/stdio/termcap.c b/lang/cem/libcc/stdio/termcap.c
index 835e50be8..2ce923715 100644
--- a/lang/cem/libcc/stdio/termcap.c
+++ b/lang/cem/libcc/stdio/termcap.c
@@ -112,12 +112,17 @@ check_for_tc()
 			return(0);	/* no : in termcap entry */
 	if (p[1] != 't' || p[2] != 'c')
 		return(1);
-	if (++count > 16) return(0);	/* recursion in tc= definitions */
+	if (count > 16) return(0);	/* recursion in tc= definitions */
+	count++;
 	strcpy(terminalname, &p[4]);
 	q = terminalname;
 	while (*q && *q != ':') q++;
 	*q = 0;
-	if (tgetent(buf, terminalname) != 1) return(0);
+	if (tgetent(buf, terminalname) != 1) {
+		---count;
+		return(0);
+	}
+	--count;
 	for (q = buf; *q && *q != ':'; q++) { }
 	strcpy(p, q);
 	capab = savcapab;