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226 lines
6.3 KiB
C
226 lines
6.3 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2022 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* Portions Copyright (c) 1990 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*/
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#ifndef _LBER_INT_H
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#define _LBER_INT_H
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#include "lber.h"
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#define LDAP_INT_DEBUG
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#include "ldap_log.h"
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#include "lber_pvt.h"
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#include "ldap_queue.h"
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LDAP_BEGIN_DECL
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typedef void (*BER_LOG_FN)(FILE *file,
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const char *subsys, int level, const char *fmt, ... );
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LBER_V (BER_ERRNO_FN) ber_int_errno_fn;
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#ifdef LDAP_MEMORY_TRACE
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# ifndef LDAP_MEMORY_DEBUG
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# define LDAP_MEMORY_DEBUG 1
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# endif
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#endif
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#ifdef LDAP_MEMORY_DEBUG
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LBER_V (long) ber_int_meminuse;
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#endif
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#if defined(LDAP_MEMORY_DEBUG) && ((LDAP_MEMORY_DEBUG +0) & 2)
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# define LDAP_MEMORY_DEBUG_ASSERT assert
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#else
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# define LDAP_MEMORY_DEBUG_ASSERT(expr) ((void) 0)
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#endif
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struct lber_options {
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short lbo_valid;
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unsigned short lbo_options;
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int lbo_debug;
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};
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LBER_F( int ) ber_pvt_log_output(
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const char *subsystem,
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int level,
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const char *fmt, ... );
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#define LBER_UNINITIALIZED 0x0
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#define LBER_INITIALIZED 0x1
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#define LBER_VALID_BERELEMENT 0x2
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#define LBER_VALID_SOCKBUF 0x3
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LBER_V (struct lber_options) ber_int_options;
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#define ber_int_debug ber_int_options.lbo_debug
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/* Data encoded in ASN.1 BER format */
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struct berelement {
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struct lber_options ber_opts;
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#define ber_valid ber_opts.lbo_valid
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#define ber_options ber_opts.lbo_options
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#define ber_debug ber_opts.lbo_debug
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/*
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* The members below, when not NULL/LBER_DEFAULT/etc, are:
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* ber_buf Data buffer. Other pointers normally point into it.
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* ber_rwptr Read/write cursor for Sockbuf I/O.
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* ber_memctx Context passed to ber_memalloc() & co.
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* When decoding data (reading it from the BerElement):
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* ber_end End of BER data.
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* ber_ptr Read cursor, except for 1st octet of tags.
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* ber_tag 1st octet of next tag, saved from *ber_ptr when
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* ber_ptr may be pointing at a tag and is >ber_buf.
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* The octet *ber_ptr itself may get overwritten with
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* a \0, to terminate the preceding element.
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* When encoding data (writing it to the BerElement):
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* ber_end End of allocated buffer - 1 (allowing a final \0).
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* ber_ptr Last complete BER element (normally write cursor).
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* ber_sos_ptr NULL or write cursor for incomplete sequence or set.
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* ber_sos_inner offset(seq/set length octets) if ber_sos_ptr!=NULL.
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* ber_tag Default tag for next ber_printf() element.
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* ber_usertag Boolean set by ber_printf "!" if it sets ber_tag.
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* ber_len Reused for ber_sos_inner.
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* When output to a Sockbuf:
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* ber_ptr End of encoded data to write.
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* When input from a Sockbuf:
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* See ber_get_next().
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*/
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/* Do not change the order of these 3 fields! see ber_get_next */
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ber_tag_t ber_tag;
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ber_len_t ber_len;
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ber_tag_t ber_usertag;
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char *ber_buf;
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char *ber_ptr;
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char *ber_end;
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char *ber_sos_ptr;
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# define ber_sos_inner ber_len /* reused for binary compat */
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char *ber_rwptr;
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void *ber_memctx;
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};
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#define LBER_VALID(ber) ((ber)->ber_valid==LBER_VALID_BERELEMENT)
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#define ber_pvt_ber_remaining(ber) ((ber)->ber_end - (ber)->ber_ptr)
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#define ber_pvt_ber_total(ber) ((ber)->ber_end - (ber)->ber_buf)
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#define ber_pvt_ber_write(ber) ((ber)->ber_ptr - (ber)->ber_buf)
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struct sockbuf {
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struct lber_options sb_opts;
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Sockbuf_IO_Desc *sb_iod; /* I/O functions */
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#define sb_valid sb_opts.lbo_valid
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#define sb_options sb_opts.lbo_options
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#define sb_debug sb_opts.lbo_debug
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ber_socket_t sb_fd;
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ber_len_t sb_max_incoming;
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unsigned int sb_trans_needs_read:1;
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unsigned int sb_trans_needs_write:1;
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#ifdef LDAP_PF_LOCAL_SENDMSG
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char sb_ungetlen;
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char sb_ungetbuf[8];
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#endif
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};
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#define SOCKBUF_VALID( sb ) ( (sb)->sb_valid == LBER_VALID_SOCKBUF )
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/*
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* decode.c, encode.c
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*/
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/* Simplest OID max-DER-component to implement in both decode and encode */
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#define LBER_OID_COMPONENT_MAX ((unsigned long)-1 - 128)
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/*
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* io.c
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*/
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LBER_F( int )
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ber_realloc LDAP_P((
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BerElement *ber,
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ber_len_t len ));
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LBER_F (char *) ber_start LDAP_P(( BerElement * ));
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LBER_F (int) ber_len LDAP_P(( BerElement * ));
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LBER_F (int) ber_ptrlen LDAP_P(( BerElement * ));
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LBER_F (void) ber_rewind LDAP_P(( BerElement * ));
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/*
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* bprint.c
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*/
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#define ber_log_printf ber_pvt_log_printf
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LBER_F( int )
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ber_log_bprint LDAP_P((
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int errlvl,
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int loglvl,
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const char *data,
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ber_len_t len ));
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LBER_F( int )
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ber_log_dump LDAP_P((
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int errlvl,
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int loglvl,
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BerElement *ber,
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int inout ));
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LBER_V (BER_LOG_FN) ber_int_log_proc;
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LBER_V (FILE *) ber_pvt_err_file;
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/* memory.c */
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/* simple macros to realloc for now */
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LBER_V (BerMemoryFunctions *) ber_int_memory_fns;
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LBER_F (char *) ber_strndup( LDAP_CONST char *, ber_len_t );
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LBER_F (char *) ber_strndup_x( LDAP_CONST char *, ber_len_t, void *ctx );
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#define LBER_MALLOC(s) ber_memalloc((s))
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#define LBER_CALLOC(n,s) ber_memcalloc((n),(s))
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#define LBER_REALLOC(p,s) ber_memrealloc((p),(s))
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#define LBER_FREE(p) ber_memfree((p))
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#define LBER_VFREE(v) ber_memvfree((void**)(v))
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#define LBER_STRDUP(s) ber_strdup((s))
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#define LBER_STRNDUP(s,l) ber_strndup((s),(l))
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/* sockbuf.c */
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LBER_F( int )
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ber_int_sb_init LDAP_P(( Sockbuf *sb ));
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LBER_F( int )
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ber_int_sb_close LDAP_P(( Sockbuf *sb ));
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LBER_F( int )
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ber_int_sb_destroy LDAP_P(( Sockbuf *sb ));
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LBER_F( ber_slen_t )
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ber_int_sb_read LDAP_P(( Sockbuf *sb, void *buf, ber_len_t len ));
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LBER_F( ber_slen_t )
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ber_int_sb_write LDAP_P(( Sockbuf *sb, void *buf, ber_len_t len ));
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LDAP_END_DECL
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#endif /* _LBER_INT_H */
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