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check also for overflow

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This commit is contained in:
christos 2011-12-24 23:42:30 +00:00
parent 21f928d30f
commit 0e0461c781
1 changed files with 3 additions and 3 deletions
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6
usr.sbin/catman/catman.c
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@ -1,4 +1,4 @@
/* $NetBSD: catman.c,v 1.32 2011/12/24 23:38:43 christos Exp $ */
/* $NetBSD: catman.c,v 1.33 2011/12/24 23:42:30 christos Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -564,8 +564,8 @@ makecat(const char *manpage, const char *catpage, const char *buildcmd,
int len;
len = snprintf(sysbuf, sizeof(sysbuf), buildcmd, manpage);
if (len < 0)
err(1, "snprintf");
if (len < 0 || len > sizeof(sysbuf))
errx(1, "snprintf");
if (*crunchcmd != '\0') {
snprintf(crunchbuf, sizeof(crunchbuf), crunchcmd, catpage);