1 files changed, 98 insertions, 0 deletions
diff --git a/libc/misc/locale/nl_langinfo.c b/libc/misc/locale/nl_langinfo.c
new file mode 100644
index 000000000..492bf2bda
--- /dev/null
+++ b/libc/misc/locale/nl_langinfo.c
@@ -0,0 +1,98 @@
+/* User interface for extracting locale-dependent parameters.
+   Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <stddef.h>
+#include <time.h>
+#include <langinfo.h>
+#include <limits.h>
+#include <errno.h>
+#include <locale.h>
+#include <langinfo.h>
+#include <sys/types.h>
+
+/* Structure describing locale data in core for a category.  */
+struct locale_data
+{
+  const char *name;
+  const char *filedata;		/* Region mapping the file data.  */
+  off_t filesize;		/* Size of the file (and the region).  */
+  int mmaped;			/* If nonzero the data is mmaped.  */
+
+  unsigned int usage_count;	/* Counter for users.  */
+
+  unsigned int nstrings;	/* Number of strings below.  */
+  union locale_data_value
+  {
+    const wchar_t *wstr;
+    const char *string;
+    unsigned int word;
+  }
+  values[0];	/* Items, usually pointers into `filedata'.  */
+};
+
+
+/* For each category declare two external variables (with weak references):
+ * extern const struct locale_data *_nl_current_CATEGORY;
+ * This points to the current locale's in-core data for CATEGORY.
+ * extern const struct locale_data _nl_C_CATEGORY;
+ * This contains the built-in "C"/"POSIX" locale's data for CATEGORY.
+ * Both are weak references; if &_nl_current_CATEGORY is zero,
+ * then nothing is using the locale data.  */
+#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
+extern struct locale_data *_nl_current_##category;                            \
+extern struct locale_data _nl_C_##category;
+#include "categories.c"
+#undef  DEFINE_CATEGORY
+
+
+
+/* Array indexed by category of pointers to _nl_C_CATEGORY slots.
+ *    Elements are zero for categories whose data is never used.  */
+struct locale_data *const _nl_C[] =
+{
+#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
+    [category] = &_nl_C_##category,
+#include "categories.c"
+#undef  DEFINE_CATEGORY
+};
+
+
+
+/* Return a string with the data for locale-dependent parameter ITEM.  */
+
+char * nl_langinfo (nl_item item)
+{
+  int category = _NL_ITEM_CATEGORY (item);
+  unsigned int index = _NL_ITEM_INDEX (item);
+  const struct locale_data *data;
+
+  if (category < 0 || category >= LC_ALL)
+    /* Bogus category: bogus item.  */
+    return (char *) "";
+
+  data = _nl_C[category];
+
+  if (index >= data->nstrings)
+    /* Bogus index for this category: bogus item.  */
+    return (char *) "";
+
+  /* Return the string for the specified item.  */
+  return (char *) data->values[index].string;
+}