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Avoid an infinite loop caused by a line accidentally dropped 

in 1.22 (almost 30 months ago!)

[ Discovered by rhialto@ ]
This commit is contained in:
kre 2018-07-30 22:58:09 +00:00
parent c8969c8808
commit 9f2b1d9e76
1 changed files with 3 additions and 2 deletions
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5
usr.bin/m4/eval.c
View File

@ -1,5 +1,5 @@
/* $OpenBSD: eval.c,v 1.66 2008/08/21 21:01:47 espie Exp $ */
/* $NetBSD: eval.c,v 1.26 2017/10/23 02:38:46 christos Exp $ */
/* $NetBSD: eval.c,v 1.27 2018/07/30 22:58:09 kre Exp $ */
/*
* Copyright (c) 1989, 1993
@ -42,7 +42,7 @@
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
__RCSID("$NetBSD: eval.c,v 1.26 2017/10/23 02:38:46 christos Exp $");
__RCSID("$NetBSD: eval.c,v 1.27 2018/07/30 22:58:09 kre Exp $");
#include <sys/types.h>
#include <ctype.h>
@ -987,6 +987,7 @@ map(char *dest, const char *src, const char *from, const char *to)
}
} else {
while (*src) {
sch = (unsigned char)(*src++);
dch = mapvec[sch];
while (dch != sch) {
sch = dch;