1 files changed, 88 insertions, 0 deletions
diff --git a/misc/unix/env.c b/misc/unix/env.c
new file mode 100644
index 0000000..b41f8f1
--- /dev/null
+++ b/misc/unix/env.c
@@ -0,0 +1,88 @@
+/* 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_private.h"
+#include "apr_env.h"
+#include "apr_strings.h"
+
+#if APR_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if APR_HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+APR_DECLARE(apr_status_t) apr_env_get(char **value,
+                                      const char *envvar,
+                                      apr_pool_t *pool)
+{
+#ifdef HAVE_GETENV
+
+    char *val = getenv(envvar);
+    if (!val)
+        return APR_ENOENT;
+    *value = val;
+    return APR_SUCCESS;
+
+#else
+    return APR_ENOTIMPL;
+#endif
+}
+
+
+APR_DECLARE(apr_status_t) apr_env_set(const char *envvar,
+                                      const char *value,
+                                      apr_pool_t *pool)
+{
+#if defined(HAVE_SETENV)
+
+    if (0 > setenv(envvar, value, 1))
+        return APR_ENOMEM;
+    return APR_SUCCESS;
+
+#elif defined(HAVE_PUTENV)
+
+    if (0 > putenv(apr_pstrcat(pool, envvar, "=", value, NULL)))
+        return APR_ENOMEM;
+    return APR_SUCCESS;
+
+#else
+    return APR_ENOTIMPL;
+#endif
+}
+
+
+APR_DECLARE(apr_status_t) apr_env_delete(const char *envvar, apr_pool_t *pool)
+{
+#ifdef HAVE_UNSETENV
+
+    unsetenv(envvar);
+    return APR_SUCCESS;
+
+#else
+    /* hint: some platforms allow envvars to be unset via
+     *       putenv("varname")...  that isn't Single Unix spec,
+     *       but if your platform doesn't have unsetenv() it is
+     *       worth investigating and potentially adding a
+     *       configure check to decide when to use that form of
+     *       putenv() here
+     */
+    return APR_ENOTIMPL;
+#endif
+}