summaryrefslogtreecommitdiff
path: root/locale/broken_cur_max.c
diff options
context:
space:
mode:
Diffstat (limited to 'locale/broken_cur_max.c')
-rw-r--r--locale/broken_cur_max.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/locale/broken_cur_max.c b/locale/broken_cur_max.c
new file mode 100644
index 0000000000..0374f84a57
--- /dev/null
+++ b/locale/broken_cur_max.c
@@ -0,0 +1,50 @@
+/* Return number of characters in multibyte representation for current
+ character set.
+ Copyright (C) 1996 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <langinfo.h>
+#include <locale.h>
+#include <stdlib.h>
+#include "localeinfo.h"
+
+
+/* This is a gross hack to get borken programs running.
+
+ ISO C provides no mean to find out how many bytes the wide
+ character representation really uses. But it defines MB_CUR_LEN to
+ return the information for the multi-byte character representation.
+ Many programmers don't know the difference between the two and
+ thing this means the same. But assuming all characters have a size
+ of MB_CUR_LEN after they have been processed by `mbrtowc' is wrong.
+ Instead the maximal number of character used for the conversion is
+ MB_CURLEN.
+
+ It is known that some Motif applications have this problem. To
+ cure this one has to make sure the glibc uses the function in this
+ file instead of the one in locale/mb_cur_max.c. This can either be
+ done by linking with this file or by using the LD_PRELOAD feature
+ of the dynamic linker. */
+int
+__ctype_get_mb_cur_max (void)
+{
+ int correct_value = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MB_CUR_MAX);
+
+ return ((int []) { 1, 1, 1, 2, 2, 3, 4 })[correct_value];
+}