aboutsummaryrefslogtreecommitdiff
path: root/catgets/catgets.c
diff options
context:
space:
mode:
Diffstat (limited to 'catgets/catgets.c')
-rw-r--r--catgets/catgets.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/catgets/catgets.c b/catgets/catgets.c
new file mode 100644
index 0000000000..ca0fdd693c
--- /dev/null
+++ b/catgets/catgets.c
@@ -0,0 +1,163 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
+
+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 <alloca.h>
+#include <nl_types.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "catgetsinfo.h"
+
+
+/* Open the catalog and return a descriptor for the catalog. */
+nl_catd
+catopen (const char *cat_name, int flag)
+{
+ __nl_catd result;
+ const char *env_var;
+
+ result = (__nl_catd) malloc (sizeof (__nl_catd));
+ if (result == NULL)
+ /* We cannot get enough memory. */
+ return (nl_catd) -1;
+
+ result->status = closed;
+
+ result->cat_name = strdup (cat_name);
+ if (result->cat_name == NULL)
+ {
+ free (result);
+ return (nl_catd) -1;
+ }
+
+ if (strchr (cat_name, '/') == NULL)
+ {
+ if (flag == NL_CAT_LOCALE)
+ {
+ env_var = getenv ("LC_ALL");
+ if (env_var == NULL)
+ {
+ env_var = getenv ("LC_MESSAGES");
+ if (env_var == NULL)
+ {
+ env_var = getenv ("LANG");
+ if (env_var == NULL)
+ env_var = "C";
+ }
+ }
+ }
+ else
+ {
+ env_var = getenv ("LANG");
+ if (env_var == NULL)
+ env_var = "C";
+ }
+
+ result->env_var = strdup (env_var);
+ if (result->env_var == NULL)
+ {
+ free ((void *) result->cat_name);
+ free ((void *) result);
+ return (nl_catd) -1;
+ }
+
+ if (getenv ("NLSPATH") != NULL)
+ result->nlspath = strdup (getenv ("NLSPATH"));
+ else
+ result->nlspath = strdup (NLSPATH);
+
+ if (result->nlspath == NULL)
+ {
+ free ((void *) result->cat_name);
+ free ((void *) result->env_var);
+ free ((void *) result);
+ return (nl_catd) -1;
+ }
+ }
+ else
+ {
+ result->env_var = NULL;
+ result->nlspath = NULL;
+ }
+
+ return (nl_catd) result;
+}
+
+
+/* Return message from message catalog. */
+char *
+catgets (nl_catd catalog_desc, int set, int message, const char *string)
+{
+ __nl_catd catalog;
+ size_t idx;
+ size_t cnt;
+
+ /* Be generous if catalog which failed to be open is used. */
+ if (catalog_desc == (nl_catd) -1 || ++set <= 0 || message < 0)
+ return (char *) string;
+
+ catalog = (__nl_catd) catalog_desc;
+
+ if (catalog->status == closed)
+ __open_catalog (catalog, 1);
+
+ if (catalog->status == nonexisting)
+ return (char *) string;
+
+ idx = ((set * message) % catalog->plane_size) * 3;
+ cnt = 0;
+ do
+ {
+ if (catalog->name_ptr[idx + 0] == (u_int32_t) set
+ && catalog->name_ptr[idx + 1] == (u_int32_t) message)
+ return (char *) &catalog->strings[catalog->name_ptr[idx + 2]];
+
+ idx += catalog->plane_size * 3;
+ }
+ while (++cnt < catalog->plane_depth);
+
+ return (char *) string;
+}
+
+
+/* Return resources used for loaded message catalog. */
+int
+catclose (nl_catd catalog_desc)
+{
+ __nl_catd catalog;
+
+ catalog = (__nl_catd) catalog_desc;
+
+ if (catalog->status == mmaped)
+ munmap ((void *) catalog->file_ptr, catalog->file_size);
+ else if (catalog->status == malloced)
+ free ((void *) catalog->file_ptr);
+ else if (catalog->status != closed && catalog->status != nonexisting)
+ return -1;
+
+ if (catalog->nlspath)
+ free ((void *) catalog->nlspath);
+ if (catalog->env_var)
+ free ((void *) catalog->env_var);
+ free ((void *) catalog);
+
+ return 0;
+}