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-rw-r--r--ChangeLog7
-rw-r--r--argp/argp.h5
2 files changed, 10 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index d9f1cc2e94..10daff82bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -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]
diff --git a/argp/argp.h b/argp/argp.h
index f310193458..3a5cb01fd8 100644
--- a/argp/argp.h
+++ b/argp/argp.h
@@ -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);
}
}