1 files changed, 83 insertions, 0 deletions
diff --git a/contrib/apr/misc/unix/charset.c b/contrib/apr/misc/unix/charset.c
new file mode 100644
index 000000000000..a16310cd0c95
--- /dev/null
+++ b/contrib/apr/misc/unix/charset.c
@@ -0,0 +1,83 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr.h"
+#include "apr_private.h"
+#include "apr_strings.h"
+#include "apr_portable.h"
+
+#ifdef HAVE_LANGINFO_H
+#include <langinfo.h>
+#endif
+
+/*
+ * simple heuristic to determine codepage of source code so that
+ * literal strings (e.g., "GET /\r\n") in source code can be translated
+ * properly
+ *
+ * If appropriate, a symbol can be set at configure time to determine
+ * this.  On EBCDIC platforms, it will be important how the code was
+ * unpacked.
+ */
+
+APR_DECLARE(const char*) apr_os_default_encoding (apr_pool_t *pool)
+{
+#ifdef __MVS__
+#    ifdef __CODESET__
+        return __CODESET__;
+#    else
+        return "IBM-1047";
+#    endif
+#endif
+
+    if ('}' == 0xD0) {
+        return "IBM-1047";
+    }
+
+    if ('{' == 0xFB) {
+        return "EDF04";
+    }
+
+    if ('A' == 0xC1) {
+        return "EBCDIC"; /* not useful */
+    }
+
+    if ('A' == 0x41) {
+        return "ISO-8859-1"; /* not necessarily true */
+    }
+
+    return "unknown";
+}
+
+
+APR_DECLARE(const char*) apr_os_locale_encoding (apr_pool_t *pool)
+{
+#if defined(HAVE_NL_LANGINFO) && defined(CODESET)
+    const char *charset;
+
+    charset = nl_langinfo(CODESET);
+    if (charset && *charset) {
+#ifdef _OSD_POSIX /* Bug workaround - delete as soon as fixed in OSD_POSIX */
+        /* Some versions of OSD_POSIX return nl_langinfo(CODESET)="^[nN]" */
+        /* Ignore the bogus information and use apr_os_default_encoding() */
+        if (charset[0] != '^')
+#endif
+        return apr_pstrdup(pool, charset);
+    }
+#endif
+
+    return apr_os_default_encoding(pool);
+}