1 files changed, 52 insertions, 0 deletions
diff --git a/lib/curl_gethostname.c b/lib/curl_gethostname.c
new file mode 100644
index 000000000..5a8c6494b
--- /dev/null
+++ b/lib/curl_gethostname.c
@@ -0,0 +1,52 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "setup.h"
+#include "curl_gethostname.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define GETHOSTNAME_ENV_VAR "CURL_GETHOSTNAME"
+
+int Curl_gethostname(char *name, size_t namelen) {
+#ifdef HAVE_GETHOSTNAME
+
+#ifdef CURLDEBUG
+  /* we check the environment variable only in case of debug build */
+  const char *force_hostname = getenv(GETHOSTNAME_ENV_VAR);
+  if(force_hostname) {
+    strncpy(name, force_hostname, namelen);
+    return 0;
+  }
+#endif
+  /* no override requested */
+  return gethostname(name, namelen);
+
+#else
+  /* no gethostname() available on system, we should always fail */
+  (void) name;
+  (void) namelen;
+  return -1;
+#endif
+}