Move getaddrinfo from 'posix' into 'nss'

getaddrinfo is an entry point for nss functionality.  This commit moves
it from 'sysdeps/posix' to 'nss', gets rid of the stub in 'posix', and
moves all associated tests as well.
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/nss/tst-getaddrinfo.c b/nss/tst-getaddrinfo.c
new file mode 100644
index 0000000000..eff92a7856
--- /dev/null
+++ b/nss/tst-getaddrinfo.c
@@ -0,0 +1,68 @@
+/* Copyright (C) 1999-2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+static int
+do_test (void)
+{
+  const int family[2] = { AF_INET, AF_INET6 };
+  int result = 0;
+  int gaierr;
+  size_t index;
+  struct addrinfo hints, *ai, *aitop;
+
+  for (index = 0; index < sizeof (family) / sizeof (family[0]); ++index)
+    {
+      memset (&hints, '\0', sizeof (hints));
+      hints.ai_family = family[index];
+      hints.ai_socktype = SOCK_STREAM;
+
+      gaierr = getaddrinfo (NULL, "54321", &hints, &aitop);
+      if (gaierr != 0)
+	{
+	  gai_strerror (gaierr);
+	  result = 1;
+	}
+      else
+	{
+	  for (ai = aitop; ai != NULL; ai = ai->ai_next)
+	    {
+	      printf ("Should return family: %d. Returned: %d\n",
+		      family[index], ai->ai_family);
+	      result |= family[index] != ai->ai_family;
+	    }
+
+	  while (aitop != NULL)
+	    {
+	      ai = aitop;
+	      aitop = aitop->ai_next;
+	      freeaddrinfo (ai);
+	    }
+	}
+    }
+
+  return result;
+}
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"