move pagectrl code into compat directory

git-svn-id: http://arthurdejong.org/svn/nss-pam-ldapd/nss-ldapd@592 ef36b2f9-881f-0410-afb5-c4e39611909c
author: Arthur de Jong <arthur@arthurdejong.org> 2008-01-31 23:04:10 +0100
committer: Arthur de Jong <arthur@arthurdejong.org> 2008-01-31 23:04:10 +0100
commit: b715720d366164532f1c9d65cfffb7134da416be (patch)
tree: f6fb4c86f70915938572eeecdab19d7114bc0988 /compat
parent: a071bd3d1b48f9e4c83502bc5c06591892ba623e (diff)
3 files changed, 264 insertions, 1 deletions
diff --git a/compat/Makefile.am b/compat/Makefile.am
index 54e9be1..d71d087 100644
--- a/compat/Makefile.am
+++ b/compat/Makefile.am
@@ -23,7 +23,8 @@ AM_CPPFLAGS=-I$(top_srcdir)
 AM_CFLAGS = -fPIC
 
 EXTRA_DIST = getopt_long.c getopt_long.h \
-             daemon.c daemon.h
+             daemon.c daemon.h \
+             pagectrl.c pagectrl.h
 
 libcompat_a_SOURCES = getpeercred.c getpeercred.h
 libcompat_a_LIBADD = @LIBOBJS@
diff --git a/compat/pagectrl.c b/compat/pagectrl.c
new file mode 100644
index 0000000..9dff696
--- /dev/null
+++ b/compat/pagectrl.c
@@ -0,0 +1,217 @@
+/*
+   pagectrl.c - provide a replacement ldap_create_page_control() function.
+   This file was part of the nss_ldap library which has been
+   forked into the nss-ldapd library.
+
+   Copyright (C) 2002 Max Caines
+   This software is not subject to any license of the University
+   of Wolverhampton.
+
+   This 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.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA
+*/
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <lber.h>
+#include <ldap.h>
+
+#include "pagectrl.h"
+
+#ifndef LDAP_CONTROL_PAGE_OID
+#define LDAP_CONTROL_PAGE_OID           "1.2.840.113556.1.4.319"
+#endif
+
+#ifndef HAVE_LDAP_CREATE_PAGE_CONTROL
+/*---
+   ldap_create_page_control
+
+   Create and encode the Paged Results control.
+
+   ld        (IN)  An LDAP session handle, as obtained from a call to
+                                   ldap_init().
+
+   pagesize  (IN)  The number of entries to return in each page
+
+   cookiep   (IN)  Pointer to a berVal structure that the server uses to
+                                   determine the current location in the
+                                   result set (opaque). Set to NULL the
+                                   first time.
+
+   iscritical (IN) Is this control critical to the search?
+
+   ctrlp     (OUT) A result parameter that will be assigned the address
+                                   of an LDAPControl structure that contains the
+                                   PagedResult control created by this function.
+                                   The memory occupied by the LDAPControl structure
+                                   SHOULD be freed when it is no longer in use by
+                                   calling ldap_control_free().
+
+
+   Ber encoding
+
+   PageResult ::= SEQUENCE {
+                pageSize     INTEGER
+                cookie       OCTET STRING }
+
+
+   Note:  The first time the Page control is created, the cookie
+                  should be set to a zero-length string. The cookie obtained
+                  from calling ldap_parse_page_control() should be used as
+                  the cookie in the next ldap_create_page_control call.
+
+ ---*/
+
+int
+ldap_create_page_control (LDAP * ld,
+                          unsigned long pagesize,
+                          struct berval *cookiep,
+                          int iscritical, LDAPControl ** ctrlp)
+{
+  ber_tag_t tag;
+  BerElement *ber;
+  BerElement *ldap_alloc_ber_with_options (LDAP * ld);
+  int rc;
+
+  if ((ld == NULL) || (ctrlp == NULL))
+    {
+      return (LDAP_PARAM_ERROR);
+    }
+
+  if ((ber = ldap_alloc_ber_with_options (ld)) == NULL)
+    {
+      return (LDAP_NO_MEMORY);
+    }
+
+  tag = ber_printf (ber, "{i", pagesize);
+  if (tag == LBER_ERROR)
+    goto exit;
+
+  if (cookiep == NULL)
+    tag = ber_printf (ber, "o", "", 0);
+  else
+    tag = ber_printf (ber, "O", cookiep);
+  if (tag == LBER_ERROR)
+    goto exit;
+
+  tag = ber_printf (ber, /*{ */ "N}");
+  if (tag == LBER_ERROR)
+    goto exit;
+
+  rc = ldap_create_control (LDAP_CONTROL_PAGE_OID, ber, iscritical, ctrlp);
+
+  ber_free (ber, 1);
+  return (rc);
+
+exit:
+  ber_free (ber, 1);
+  return (LDAP_ENCODING_ERROR);
+}
+#endif /* not HAVE_LDAP_CREATE_PAGE_CONTROL */
+
+#ifndef HAVE_LDAP_PARSE_PAGE_CONTROL
+/*---
+   ldap_parse_page_control
+
+   Decode the Virtual List View control return information.
+
+   ld           (IN)   An LDAP session handle.
+
+   ctrls        (IN)   The address of a NULL-terminated array of
+                                           LDAPControl structures, typically obtained
+                                           by a call to ldap_parse_result().
+
+   list_countp  (OUT)  This result parameter is filled in with the number
+                                           of entries returned in this page
+
+   cookiep      (OUT)  This result parameter is filled in with the address
+                                           of a struct berval that contains the server-
+                                           generated cookie.
+                                           The returned cookie SHOULD be used in the next call
+                                           to create a Page sort control.  The struct berval
+                                           returned SHOULD be disposed of by calling ber_bvfree()
+                                           when it is no longer needed.
+
+---*/
+int
+ldap_parse_page_control (LDAP * ld,
+                         LDAPControl ** ctrls,
+                         unsigned long *list_countp, struct berval **cookiep)
+{
+  BerElement *ber;
+  LDAPControl *pControl;
+  int i;
+  unsigned long count;
+  ber_tag_t tag;
+
+  if (cookiep)
+    {
+      *cookiep = NULL;          /* Make sure we return a NULL if error occurs. */
+    }
+
+  if (ld == NULL)
+    {
+      return (LDAP_PARAM_ERROR);
+    }
+
+  if (ctrls == NULL)
+    {
+      return (LDAP_CONTROL_NOT_FOUND);
+    }
+
+  /* Search the list of control responses for a Page control. */
+  for (i = 0; ctrls[i]; i++)
+    {
+      pControl = ctrls[i];
+      if (!strcmp (LDAP_CONTROL_PAGE_OID, pControl->ldctl_oid))
+        goto foundPageControl;
+    }
+
+  /* No page control was found. */
+  return (LDAP_CONTROL_NOT_FOUND);
+
+foundPageControl:
+  /* Create a BerElement from the berval returned in the control. */
+  ber = ber_init (&pControl->ldctl_value);
+
+  if (ber == NULL)
+    {
+      return (LDAP_NO_MEMORY);
+    }
+
+  /* Extract the data returned in the control. */
+  tag = ber_scanf (ber, "{iO" /*} */ , &count, cookiep);
+
+  if (tag == LBER_ERROR)
+    {
+      ber_free (ber, 1);
+      return (LDAP_DECODING_ERROR);
+    }
+
+  ber_free (ber, 1);
+
+  /* Return data to the caller for items that were requested. */
+  if (list_countp)
+    {
+      *list_countp = count;
+    }
+
+  return (LDAP_SUCCESS);
+}
+#endif /* not HAVE_LDAP_PARSE_PAGE_CONTROL */
diff --git a/compat/pagectrl.h b/compat/pagectrl.h
new file mode 100644
index 0000000..cd64b77
--- /dev/null
+++ b/compat/pagectrl.h
@@ -0,0 +1,45 @@
+/*
+   pagectrl.h - provide a replacement ldap_create_page_control() function.
+   This file was part of the nss_ldap library which has been
+   forked into the nss-ldapd library.
+
+   Copyright (C) 1997-2005 Luke Howard
+
+   This 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.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA
+*/
+
+#ifndef _LDAP_NSS_LDAP_PAGECTRL_H
+#define _LDAP_NSS_LDAP_PAGECTRL_H
+
+#ifndef HAVE_LDAP_CREATE_PAGE_CONTROL
+int
+ldap_create_page_control( LDAP *ld,
+    unsigned long pagesize,
+    struct berval *cookiep,
+    int iscritical,
+    LDAPControl **ctrlp );
+#endif /* not HAVE_LDAP_CREATE_PAGE_CONTROL */
+
+#ifndef HAVE_LDAP_PARSE_PAGE_CONTROL
+int
+ldap_parse_page_control(
+    LDAP           *ld,
+    LDAPControl    **ctrls,
+    unsigned long  *list_countp,
+    struct berval  **cookiep );
+#endif /* not HAVE_LDAP_PARSE_PAGE_CONTROL */
+
+#endif /* _LDAP_NSS_LDAP_UTIL_H */
author	Arthur de Jong <arthur@arthurdejong.org>	2008-01-31 23:04:10 +0100
committer	Arthur de Jong <arthur@arthurdejong.org>	2008-01-31 23:04:10 +0100
commit	b715720d366164532f1c9d65cfffb7134da416be (patch)
tree	f6fb4c86f70915938572eeecdab19d7114bc0988 /compat
parent	a071bd3d1b48f9e4c83502bc5c06591892ba623e (diff)