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-rw-r--r--nis/nss_nisplus/nisplus-service.c308
1 files changed, 308 insertions, 0 deletions
diff --git a/nis/nss_nisplus/nisplus-service.c b/nis/nss_nisplus/nisplus-service.c
new file mode 100644
index 0000000000..54f4f876c7
--- /dev/null
+++ b/nis/nss_nisplus/nisplus-service.c
@@ -0,0 +1,308 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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 <nss.h>
+#include <errno.h>
+#include <ctype.h>
+#include <netdb.h>
+#include <string.h>
+#include <libc-lock.h>
+#include <rpcsvc/nis.h>
+#include <rpcsvc/nislib.h>
+
+#include "nss-nisplus.h"
+
+__libc_lock_define_initialized (static, lock);
+
+static nis_result *result = NULL;
+static nis_name *names = NULL;
+
+#define ENTNAME         servent
+#define DATABASE        "services"
+#define TRAILING_LIST_MEMBER            s_aliases
+#define TRAILING_LIST_SEPARATOR_P       isspace
+#include "../../nss/nss_files/files-parse.c"
+#define ISSLASH(c) ((c) == '/')
+LINE_PARSER
+("#",
+ STRING_FIELD (result->s_name, isspace, 1);
+ INT_FIELD (result->s_port, ISSLASH, 10, 0, htons);
+ STRING_FIELD (result->s_proto, isspace, 1);
+ )
+
+
+#define NISENTRYVAL(idx,col,res) \
+  ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
+
+#define NISENTRYLEN(idx,col,res) \
+    ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
+
+static int
+_nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
+			    char *buffer, size_t buflen)
+{
+  char *p = buffer;
+  size_t room_left = buflen;
+  int i;
+  struct parser_data *data = (void *) buffer;
+
+  if (result == NULL)
+    return -1;
+
+  if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
+      result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
+   strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
+	   "services_tbl") != 0 ||
+      result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4)
+    return -1;
+
+  memset (p, '\0', room_left);
+
+  /* Generate the services entry format and use the normal parser */
+  if (NISENTRYLEN (0, 0, result) + 1 > room_left)
+    {
+      __set_errno (ERANGE);
+      return -1;
+    }
+  strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result));
+  room_left -= (NISENTRYLEN (0, 0, result) + 1);
+
+  if (NISENTRYLEN (0, 3, result) + 1 > room_left)
+    {
+      __set_errno (ERANGE);
+      return -1;
+    }
+  strcat (p, "\t");
+  strncat (p, NISENTRYVAL (0, 3, result), NISENTRYLEN (0, 3, result));
+  room_left -= (NISENTRYLEN (0, 3, result) + 1);
+  if (NISENTRYLEN (0, 2, result) + 1 > room_left)
+    {
+      __set_errno (ERANGE);
+      return -1;
+    }
+  strcat (p, "/");
+  strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result));
+  room_left -= (NISENTRYLEN (0, 2, result) + 1);
+
+  for (i = 1; i < result->objects.objects_len; i++)
+    {
+      if (NISENTRYLEN (i, 1, result) + 1 > room_left)
+	{
+	  __set_errno (ERANGE);
+	  return -1;
+	}
+      strcat (p, " ");
+      strcat (p, NISENTRYVAL (i, 1, result));
+      room_left -= (NISENTRYLEN (i, 1, result) + 1);
+    }
+
+  return _nss_files_parse_servent (p, serv, data, buflen);
+}
+
+enum nss_status
+_nss_nisplus_setservent (void)
+{
+  __libc_lock_lock (lock);
+
+  if (result)
+    nis_freeresult (result);
+  result = NULL;
+  if (names)
+    {
+      nis_freenames (names);
+      names = NULL;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nisplus_endservent (void)
+{
+  __libc_lock_lock (lock);
+
+  if (result)
+    nis_freeresult (result);
+  result = NULL;
+  if (names)
+    {
+      nis_freenames (names);
+      names = NULL;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nisplus_getservent_r (struct servent *serv, char *buffer,
+			       size_t buflen)
+{
+  int parse_res;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      if (result == NULL)
+	{
+	  names = nis_getnames ("services.org_dir");
+	  if (names == NULL || names[0] == NULL)
+	    return NSS_STATUS_UNAVAIL;
+
+	  result = nis_first_entry (names[0]);
+	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+	    return niserr2nss (result->status);
+	}
+      else
+	{
+	  nis_result *res;
+
+	  res = nis_next_entry (names[0], &result->cookie);
+	  nis_freeresult (result);
+	  result = res;
+	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+	    return niserr2nss (result->status);
+	}
+
+      parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen);
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nisplus_getservent_r (struct servent *result, char *buffer,
+			   size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nisplus_getservent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nisplus_getservbyname_r (const char *name, const char *protocol,
+			      struct servent *serv,
+			      char *buffer, size_t buflen)
+{
+  int parse_res;
+
+  if (name == NULL || protocol == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_NOTFOUND;
+    }
+  else
+    {
+      nis_result *result;
+      char buf[strlen (name) + 255];
+
+      /* Search at first in the alias list, and use the correct name
+         for the next search */
+      sprintf (buf, "[name=%s,proto=%s],services.org_dir", name,
+	       protocol);
+      result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+
+      /* If we do not find it, try it as original name. But if the
+         database is correct, we should find it in the first case, too */
+      if ((result->status != NIS_SUCCESS &&
+	   result->status != NIS_S_SUCCESS) ||
+	  result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
+	  strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
+		  "services_tbl") != 0 ||
+	  result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 4)
+	sprintf (buf, "[cname=%s,proto=%s],services.org_dir", name, protocol);
+      else
+	sprintf (buf, "[cname=%s,proto=%s],services.org_dir",
+		 NISENTRYVAL (0, 0, result), protocol);
+
+      nis_freeresult (result);
+      result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+
+      if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+	{
+	  enum nss_status status = niserr2nss (result->status);
+
+	  nis_freeresult (result);
+	  return status;
+	}
+
+      parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen);
+
+      nis_freeresult (result);
+
+      if (parse_res)
+	return NSS_STATUS_SUCCESS;
+
+      if (!parse_res && errno == ERANGE)
+	return NSS_STATUS_TRYAGAIN;
+      else
+	return NSS_STATUS_NOTFOUND;
+    }
+}
+
+enum nss_status
+_nss_nisplus_getservbynumber_r (const int number, const char *protocol,
+				struct servent *serv,
+				char *buffer, size_t buflen)
+{
+  int parse_res;
+  nis_result *result;
+  char buf[60 + strlen (protocol)];
+
+  if (protocol == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  snprintf (buf, sizeof (buf), "[number=%d,proto=%s],services.org_dir",
+	    number, protocol);
+
+  result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+
+  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+    {
+      enum nss_status status = niserr2nss (result->status);
+
+      nis_freeresult (result);
+      return status;
+    }
+
+  parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen);
+
+  nis_freeresult (result);
+
+  if (parse_res)
+    return NSS_STATUS_SUCCESS;
+
+  if (!parse_res && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else
+    return NSS_STATUS_NOTFOUND;
+}
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