Adding upstream version 1.7.2.upstream/1.7.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 192 insertions, 0 deletions

diff --git a/misc/win32/env.c b/misc/win32/env.c
new file mode 100644
index 0000000..644f59b
--- /dev/null
+++ b/misc/win32/env.c
@@ -0,0 +1,192 @@
+/* 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.
+ */
+
+#define APR_WANT_STRFUNC
+#include "apr_want.h"
+#include "apr.h"
+#include "apr_arch_misc.h"
+#include "apr_arch_utf8.h"
+#include "apr_env.h"
+#include "apr_errno.h"
+#include "apr_pools.h"
+#include "apr_strings.h"
+
+#if APR_HAS_UNICODE_FS && !defined(_WIN32_WCE)
+static apr_status_t widen_envvar_name (apr_wchar_t *buffer,
+                                       apr_size_t bufflen,
+                                       const char *envvar)
+{
+    apr_size_t inchars;
+    apr_status_t status;
+
+    inchars = strlen(envvar) + 1;
+    status = apr_conv_utf8_to_ucs2(envvar, &inchars, buffer, &bufflen);
+    if (status == APR_INCOMPLETE)
+        status = APR_ENAMETOOLONG;
+
+    return status;
+}
+#endif
+
+
+APR_DECLARE(apr_status_t) apr_env_get(char **value,
+                                      const char *envvar,
+                                      apr_pool_t *pool)
+{
+#if defined(_WIN32_WCE)
+    return APR_ENOTIMPL;
+#else
+    char *val = NULL;
+    DWORD size;
+
+#if APR_HAS_UNICODE_FS
+    IF_WIN_OS_IS_UNICODE
+    {
+        apr_wchar_t wenvvar[APR_PATH_MAX];
+        apr_size_t inchars, outchars;
+        apr_wchar_t *wvalue, dummy;
+        apr_status_t status;
+
+        status = widen_envvar_name(wenvvar, APR_PATH_MAX, envvar);
+        if (status)
+            return status;
+
+        SetLastError(0);
+        size = GetEnvironmentVariableW(wenvvar, &dummy, 0);
+        if (GetLastError() == ERROR_ENVVAR_NOT_FOUND)
+            /* The environment variable doesn't exist. */
+            return APR_ENOENT;
+
+        if (size == 0) {
+            /* The environment value exists, but is zero-length. */
+            *value = apr_pstrdup(pool, "");
+            return APR_SUCCESS;
+        }
+
+        wvalue = apr_palloc(pool, size * sizeof(*wvalue));
+        size = GetEnvironmentVariableW(wenvvar, wvalue, size);
+
+        inchars = wcslen(wvalue) + 1;
+        outchars = 3 * inchars; /* Enough for any UTF-8 representation */
+        val = apr_palloc(pool, outchars);
+        status = apr_conv_ucs2_to_utf8(wvalue, &inchars, val, &outchars);
+        if (status)
+            return status;
+    }
+#endif
+#if APR_HAS_ANSI_FS
+    ELSE_WIN_OS_IS_ANSI
+    {
+        char dummy;
+
+        SetLastError(0);
+        size = GetEnvironmentVariableA(envvar, &dummy, 0);
+        if (GetLastError() == ERROR_ENVVAR_NOT_FOUND)
+            /* The environment variable doesn't exist. */
+            return APR_ENOENT;
+
+        if (size == 0) {
+            /* The environment value exists, but is zero-length. */
+            *value = apr_pstrdup(pool, "");
+            return APR_SUCCESS;
+        }
+
+        val = apr_palloc(pool, size);
+        size = GetEnvironmentVariableA(envvar, val, size);
+        if (size == 0)
+            /* Mid-air collision?. Somebody must've changed the env. var. */
+            return APR_INCOMPLETE;
+    }
+#endif
+
+    *value = val;
+    return APR_SUCCESS;
+#endif
+}
+
+
+APR_DECLARE(apr_status_t) apr_env_set(const char *envvar,
+                                      const char *value,
+                                      apr_pool_t *pool)
+{
+#if defined(_WIN32_WCE)
+    return APR_ENOTIMPL;
+#else
+#if APR_HAS_UNICODE_FS
+    IF_WIN_OS_IS_UNICODE
+    {
+        apr_wchar_t wenvvar[APR_PATH_MAX];
+        apr_wchar_t *wvalue;
+        apr_size_t inchars, outchars;
+        apr_status_t status;
+
+        status = widen_envvar_name(wenvvar, APR_PATH_MAX, envvar);
+        if (status)
+            return status;
+
+        outchars = inchars = strlen(value) + 1;
+        wvalue = apr_palloc(pool, outchars * sizeof(*wvalue));
+        status = apr_conv_utf8_to_ucs2(value, &inchars, wvalue, &outchars);
+        if (status)
+            return status;
+
+        if (!SetEnvironmentVariableW(wenvvar, wvalue))
+            return apr_get_os_error();
+    }
+#endif
+#if APR_HAS_ANSI_FS
+    ELSE_WIN_OS_IS_ANSI
+    {
+        if (!SetEnvironmentVariableA(envvar, value))
+            return apr_get_os_error();
+    }
+#endif
+
+    return APR_SUCCESS;
+#endif
+}
+
+
+APR_DECLARE(apr_status_t) apr_env_delete(const char *envvar, apr_pool_t *pool)
+{
+#if defined(_WIN32_WCE)
+    return APR_ENOTIMPL;
+#else
+#if APR_HAS_UNICODE_FS
+    IF_WIN_OS_IS_UNICODE
+    {
+        apr_wchar_t wenvvar[APR_PATH_MAX];
+        apr_status_t status;
+
+        status = widen_envvar_name(wenvvar, APR_PATH_MAX, envvar);
+        if (status)
+            return status;
+
+        if (!SetEnvironmentVariableW(wenvvar, NULL))
+            return apr_get_os_error();
+    }
+#endif
+#if APR_HAS_ANSI_FS
+    ELSE_WIN_OS_IS_ANSI
+    {
+        if (!SetEnvironmentVariableA(envvar, NULL))
+            return apr_get_os_error();
+    }
+#endif
+
+    return APR_SUCCESS;
+#endif
+}