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* argp/argp.h (__option_is_short): Check upper limit of

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__key.  isprint() requires its argument to have the value
	of an unsigned char or EOF.
	Patch by Sergey Poznyakoff <gray@Mirddin.farlep.net>.
This commit is contained in:
Ulrich Drepper 2006-04-22 15:10:30 +00:00
parent 41a3975907
commit 9055724a92
2 changed files with 10 additions and 2 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2006-04-21 Jakub Jelinek <jakub@redhat.com>
* argp/argp.h (__option_is_short): Check upper limit of
__key. isprint() requires its argument to have the value
of an unsigned char or EOF.
Patch by Sergey Poznyakoff <gray@Mirddin.farlep.net>.
2006-04-21 Ulrich Drepper <drepper@redhat.com>
[BZ #2534, BZ #2535]

5
argp/argp.h
View File

@ -1,5 +1,5 @@
/* Hierarchial argument parsing, layered over getopt.
Copyright (C) 1995-1999,2003,2004,2005 Free Software Foundation, Inc.
Copyright (C) 1995-1999,2003,2004,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>.
@ -24,6 +24,7 @@
#include <stdio.h>
#include <ctype.h>
#include <getopt.h>
#include <limits.h>
#define __need_error_t
#include <errno.h>
@ -574,7 +575,7 @@ __NTH (__option_is_short (__const struct argp_option *__opt))
else
{
int __key = __opt->key;
return __key > 0 && isprint (__key);
return __key > 0 && __key <= UCHAR_MAX && isprint (__key);
}
}