1 files changed, 150 insertions, 0 deletions
diff --git a/hesiod/nss_hesiod/hesiod-grp.c b/hesiod/nss_hesiod/hesiod-grp.c
new file mode 100644
index 0000000000..7b0832dbe3
--- /dev/null
+++ b/hesiod/nss_hesiod/hesiod-grp.c
@@ -0,0 +1,150 @@
+/* Copyright (C) 1997 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <bits/libc-lock.h>
+#include <errno.h>
+#include <hesiod.h>
+#include <nss.h>
+#include <grp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME grent
+#define STRUCTURE group
+#define EXTERN_PARSER
+#include <nss/nss_files/files-parse.c>
+
+/* Locks the static variables in this file.  */
+__libc_lock_define_initialized (static, lock);
+
+static void *context = NULL;
+
+static enum nss_status
+internal_setgrent (void)
+{
+  if (!context)
+    {
+      if (hesiod_init (&context) == -1)
+	return NSS_STATUS_UNAVAIL;
+    }
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_hesiod_setgrent (void)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_setgrent ();
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_hesiod_endgrent (void)
+{
+  __libc_lock_lock (lock);
+
+  if (context)
+    {
+      hesiod_end (context);
+      context = NULL;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+lookup (const char *name, const char *type, struct group *grp,
+	char *buffer, size_t buflen)
+{
+  enum nss_status status;
+  struct parser_data *data = (void *) buffer;
+  size_t linebuflen;
+  char **list;
+  int parse_res;
+
+  status = internal_setgrent ();
+  if (status != NSS_STATUS_SUCCESS)
+    return status;
+
+  list = hesiod_resolve (context, name, type);
+  if (list == NULL)
+    return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+
+  linebuflen = buffer + buflen - data->linebuffer;
+  if (linebuflen < strlen (*list) + 1)
+    {
+      hesiod_free_list (context, list);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  strcpy (buffer, *list);
+  hesiod_free_list (context, list);
+
+  parse_res = _nss_files_parse_grent (buffer, grp, data, buflen);
+  if (parse_res < 1)
+    return parse_res == -1 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_hesiod_getgrnam_r (const char *name, struct group *grp,
+			char *buffer, size_t buflen)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = lookup (name, "group", grp, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_hesiod_getgrgid_r (gid_t gid, struct group *grp,
+			char *buffer, size_t buflen)
+{
+  enum nss_status status = NSS_STATUS_UNAVAIL;
+  char gidstr[21];	/* We will probably never have a gid_t with more
+			   than 64 bits.  */
+
+  snprintf (gidstr, sizeof gidstr, "%d", gid);
+
+  __libc_lock_lock (lock);
+
+  status = lookup (gidstr, "gid", grp, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}