Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 145 insertions, 0 deletions

diff --git a/REORG.TODO/hesiod/nss_hesiod/hesiod-service.c b/REORG.TODO/hesiod/nss_hesiod/hesiod-service.c
new file mode 100644
index 0000000000..1942188517
--- /dev/null
+++ b/REORG.TODO/hesiod/nss_hesiod/hesiod-service.c
@@ -0,0 +1,145 @@
+/* Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <hesiod.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <nss.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Hesiod uses a format for service entries that differs from the
+   traditional format.  We therefore declare our own parser.  */
+
+#define ENTNAME servent
+
+struct servent_data {};
+
+#define TRAILING_LIST_MEMBER		s_aliases
+#define TRAILING_LIST_SEPARATOR_P	isspace
+#include <nss/nss_files/files-parse.c>
+#define ISSC_OR_SPACE(c)	((c) ==  ';' || isspace (c))
+LINE_PARSER
+("#",
+ STRING_FIELD (result->s_name, ISSC_OR_SPACE, 1);
+ STRING_FIELD (result->s_proto, ISSC_OR_SPACE, 1);
+ INT_FIELD (result->s_port, ISSC_OR_SPACE, 10, 0, htons);
+ )
+
+enum nss_status
+_nss_hesiod_setservent (int stayopen)
+{
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_hesiod_endservent (void)
+{
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+lookup (const char *name, const char *type, const char *protocol,
+	struct servent *serv, char *buffer, size_t buflen, int *errnop)
+{
+  struct parser_data *data = (void *) buffer;
+  size_t linebuflen;
+  void *context;
+  char **list, **item;
+  int parse_res;
+  int found;
+  int olderr = errno;
+
+  if (hesiod_init (&context) < 0)
+    return NSS_STATUS_UNAVAIL;
+
+  list = hesiod_resolve (context, name, type);
+  if (list == NULL)
+    {
+      int err = errno;
+      hesiod_end (context);
+      __set_errno (olderr);
+      return err == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+    }
+
+  linebuflen = buffer + buflen - data->linebuffer;
+
+  item = list;
+  found = 0;
+  do
+    {
+      size_t len = strlen (*item) + 1;
+
+      if (linebuflen < len)
+	{
+	  hesiod_free_list (context, list);
+	  hesiod_end (context);
+	  *errnop = ERANGE;
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      memcpy (data->linebuffer, *item, len);
+
+      parse_res = parse_line (buffer, serv, data, buflen, errnop);
+      if (parse_res == -1)
+	{
+	  hesiod_free_list (context, list);
+	  hesiod_end (context);
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      if (parse_res > 0)
+	found = protocol == NULL || strcasecmp (serv->s_proto, protocol) == 0;
+
+      ++item;
+    }
+  while (*item != NULL && !found);
+
+  hesiod_free_list (context, list);
+  hesiod_end (context);
+
+  if (found == 0)
+    {
+      __set_errno (olderr);
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_hesiod_getservbyname_r (const char *name, const char *protocol,
+			     struct servent *serv,
+			     char *buffer, size_t buflen, int *errnop)
+{
+  return lookup (name, "service", protocol, serv, buffer, buflen, errnop);
+}
+
+enum nss_status
+_nss_hesiod_getservbyport_r (const int port, const char *protocol,
+			     struct servent *serv,
+			     char *buffer, size_t buflen, int *errnop)
+{
+  char portstr[6];	    /* Port numbers are restricted to 16 bits. */
+
+  snprintf (portstr, sizeof portstr, "%d", ntohs (port));
+
+  return lookup (portstr, "port", protocol, serv, buffer, buflen, errnop);
+}