2 files changed, 129 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/tests/test-sethostname2.c b/gnulib/tests/test-sethostname2.c
new file mode 100644
index 0000000..92c2c03
--- /dev/null
+++ b/gnulib/tests/test-sethostname2.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2011 Free Software Foundation, Inc.
+ * Written by Ben Walton.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+/* for HOST_NAME_MAX */
+#include <limits.h>
+/* for strlen */
+#include <string.h>
+
+#include <errno.h>
+#include <stdio.h>
+
+#include "macros.h"
+
+#define TESTHOSTNAME "gnulib-hostname"
+
+/* mingw and MSVC 9 lack geteuid, so setup a dummy value.
+   On Cygwin, geteuid() may return non-zero even for user accounts with
+   administrator privileges, so use a dummy value as well.  */
+#if !HAVE_GETEUID || defined __CYGWIN__
+# define geteuid() 0
+#endif
+
+int
+main (int argc, char *argv[] _GL_UNUSED)
+{
+  char origname[HOST_NAME_MAX];
+  char newname[HOST_NAME_MAX];
+  char longname[HOST_NAME_MAX + 2];
+  int rcs, i;
+
+  /* skip the tests if we don't have root privilege.  this does not
+     consider things like CAP_SYS_ADMIN (linux) or PRIV_SYS_ADMIN
+     (solaris), etc.  systems without a working geteuid (mingw, MSVC
+     9) will always skip this test. */
+  if (geteuid () != 0)
+    {
+      fprintf (stderr, "Skipping test: insufficient permissions.\n");
+      return 77;
+    }
+
+  /* we want to ensure we can do a get/set/get check to ensure the
+     change is accepted. record the current name so it can be restored
+     later */
+  ASSERT (gethostname (origname, sizeof (origname)) == 0);
+
+  /* try setting a valid hostname.  if it fails -1/ENOSYS, we will
+     skip the test for long names as this is an indication we're using
+     the stub function that doesn't do anything on this platform. */
+  rcs = sethostname (TESTHOSTNAME, strlen (TESTHOSTNAME));
+
+  if (rcs != 0)
+    {
+      if (rcs == -1 && errno == ENOSYS)
+        {
+          fprintf (stderr,
+                   "Skipping test: sethostname is not really implemented.\n");
+          return 77;
+        }
+      else if (rcs == -1 && errno == EPERM)
+        {
+          fprintf (stderr, "Skipping test: insufficient permissions.\n");
+          return 77;
+        }
+      else
+        {
+          fprintf (stderr, "error setting valid hostname.\n");
+          return 1;
+        }
+    }
+  else
+    {
+      ASSERT (gethostname (newname, sizeof (newname)) == 0);
+
+      /* On Windows, a hostname change becomes effective only after
+         a reboot.  */
+#if !((defined _WIN32 || defined __WIN32__) || defined __CYGWIN__)
+
+      /* if we don't get back what we put in, there is no need to
+         restore the original name as we will assume it was not
+         properly changed. */
+      if (strcmp (newname, TESTHOSTNAME) != 0)
+        {
+          fprintf (stderr, "set/get comparison failed.\n");
+          return 1;
+        }
+#endif
+    }
+
+  /* glibc does allow setting a zero length name, so the lower bound
+     needs no test. validate that we are constrained by
+     HOST_NAME_MAX */
+  for (i = 0; i < (HOST_NAME_MAX + 1); i++)
+    longname[i] = 'a';
+
+  longname[i] = '\0';
+
+  rcs = sethostname (longname, (HOST_NAME_MAX + 1));
+
+  if (rcs != -1)
+    {
+      /* attempt to restore the original name. */
+      ASSERT (sethostname (origname, strlen (origname)) == 0);
+      fprintf (stderr, "setting a too long hostname succeeded.\n");
+      return 1;
+    }
+
+  /* restore the original name. */
+  ASSERT (sethostname (origname, strlen (origname)) == 0);
+
+  return 0;
+}