1 files changed, 28 insertions, 0 deletions
diff --git a/tests/libtest/sethostname.c b/tests/libtest/sethostname.c
new file mode 100644
index 000000000..667f689ae
--- /dev/null
+++ b/tests/libtest/sethostname.c
@@ -0,0 +1,28 @@
+/*****************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define GETHOSTNAME_ENV_VAR "CURL_GETHOSTNAME"
+
+/*
+ * we force our own host name, in order to make some tests machine independent
+ */
+int gethostname(char *name, size_t namelen) {
+  const char *force_hostname = getenv(GETHOSTNAME_ENV_VAR);
+  if(force_hostname) {
+    strncpy(name, force_hostname, namelen);
+    return 0;
+  }
+
+  /* LD_PRELOAD used, but no hostname set, we'll just return a failure */
+  return -1;
+};