1 files changed, 108 insertions, 0 deletions
diff --git a/atf-c/detail/env.c b/atf-c/detail/env.c
new file mode 100644
index 0000000000000..feb4ee53e7631
--- /dev/null
+++ b/atf-c/detail/env.c
@@ -0,0 +1,108 @@
+/*
+ * Automated Testing Framework (atf)
+ *
+ * Copyright (c) 2007 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
+ * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include "bconfig.h"
+#endif
+
+#include <errno.h>
+#include <stdlib.h>
+
+#include "atf-c/error.h"
+
+#include "env.h"
+#include "sanity.h"
+#include "text.h"
+
+const char *
+atf_env_get(const char *name)
+{
+    const char* val = getenv(name);
+    PRE(val != NULL);
+    return val;
+}
+
+bool
+atf_env_has(const char *name)
+{
+    return getenv(name) != NULL;
+}
+
+atf_error_t
+atf_env_set(const char *name, const char *val)
+{
+    atf_error_t err;
+
+#if defined(HAVE_SETENV)
+    if (setenv(name, val, 1) == -1)
+        err = atf_libc_error(errno, "Cannot set environment variable "
+                             "'%s' to '%s'", name, val);
+    else
+        err = atf_no_error();
+#elif defined(HAVE_PUTENV)
+    char *buf;
+
+    err = atf_text_format(&buf, "%s=%s", name, val);
+    if (!atf_is_error(err)) {
+        if (putenv(buf) == -1)
+            err = atf_libc_error(errno, "Cannot set environment variable "
+                                 "'%s' to '%s'", name, val);
+        free(buf);
+    }
+#else
+#   error "Don't know how to set an environment variable."
+#endif
+
+    return err;
+}
+
+atf_error_t
+atf_env_unset(const char *name)
+{
+    atf_error_t err;
+
+#if defined(HAVE_UNSETENV)
+    unsetenv(name);
+    err = atf_no_error();
+#elif defined(HAVE_PUTENV)
+    char *buf;
+
+    err = atf_text_format(&buf, "%s=", name);
+    if (!atf_is_error(err)) {
+        if (putenv(buf) == -1)
+            err = atf_libc_error(errno, "Cannot unset environment variable"
+                                 " '%s'", name);
+        free(buf);
+    }
+#else
+#   error "Don't know how to unset an environment variable."
+#endif
+
+    return err;
+}