1 files changed, 91 insertions, 0 deletions
diff --git a/lib/dpkg/i18n.c b/lib/dpkg/i18n.c
new file mode 100644
index 0000000..cec00ee
--- /dev/null
+++ b/lib/dpkg/i18n.c
@@ -0,0 +1,91 @@
+/*
+ * libdpkg - Debian packaging suite library routines
+ * i18n.c - i18n support
+ *
+ * Copyright © 2013 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <dpkg/i18n.h>
+
+#ifdef HAVE_USELOCALE
+#ifdef HAVE_XLOCALE_H
+#include <xlocale.h>
+#endif
+static locale_t dpkg_C_locale;
+#endif
+
+void
+dpkg_locales_init(const char *package)
+{
+	setlocale(LC_ALL, "");
+	bindtextdomain(package, LOCALEDIR);
+	textdomain(package);
+
+#ifdef HAVE_USELOCALE
+	dpkg_C_locale = newlocale(LC_ALL_MASK, "C", (locale_t)0);
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+	/*
+	 * On Mac OS X, the libintl code needs to call into the CoreFoundation
+	 * framework, which is internally threaded, to initialize some caches.
+	 * This is a problem when that first call is done after a fork(3),
+	 * because per POSIX, only one thread will survive, leaving the
+	 * process in a very inconsistent state, leading to crashes.
+	 *
+	 * XXX: To workaround this, we try to force the caches initialization
+	 * at program startup time, by performing a dummy gettext() call.
+	 */
+	gettext("");
+#endif
+}
+
+void
+dpkg_locales_done(void)
+{
+#ifdef HAVE_USELOCALE
+	freelocale(dpkg_C_locale);
+	dpkg_C_locale = (locale_t)0;
+#endif
+}
+
+struct dpkg_locale
+dpkg_locale_switch_C(void)
+{
+	struct dpkg_locale loc;
+
+#ifdef HAVE_USELOCALE
+	loc.oldloc = uselocale(dpkg_C_locale);
+#else
+	loc.oldloc = setlocale(LC_ALL, NULL);
+	setlocale(LC_ALL, "C");
+#endif
+
+	return loc;
+}
+
+void
+dpkg_locale_switch_back(struct dpkg_locale loc)
+{
+#ifdef HAVE_USELOCALE
+	uselocale(loc.oldloc);
+#else
+	setlocale(LC_ALL, loc.oldloc);
+#endif
+}