1 /*	$NetBSD: ldap_pvt.h,v 1.4 2021/08/14 16:14:55 christos Exp $	*/
2 
3 /* $OpenLDAP$ */
4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5  *
6  * Copyright 1998-2021 The OpenLDAP Foundation.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted only as authorized by the OpenLDAP
11  * Public License.
12  *
13  * A copy of this license is available in file LICENSE in the
14  * top-level directory of the distribution or, alternatively, at
15  * <http://www.OpenLDAP.org/license.html>.
16  */
17 
18 /* ldap-pvt.h - Header for ldap_pvt_ functions.
19  * These are meant to be internal to OpenLDAP Software.
20  */
21 
22 #ifndef _LDAP_PVT_H
23 #define _LDAP_PVT_H 1
24 
25 #include <openldap.h>				/* get public interfaces */
26 #include <lber.h>				/* get ber_slen_t */
27 #include <lber_pvt.h>				/* get Sockbuf_Buf */
28 
29 LDAP_BEGIN_DECL
30 
31 LDAP_F ( int )
32 ldap_pvt_url_scheme2proto LDAP_P((
33 	const char * ));
34 LDAP_F ( int )
35 ldap_pvt_url_scheme2tls LDAP_P((
36 	const char * ));
37 LDAP_F ( int )
38 ldap_pvt_url_scheme2proxied LDAP_P((
39 	const char * ));
40 
41 LDAP_F ( int )
42 ldap_pvt_url_scheme_port LDAP_P((
43 	const char *, int ));
44 
45 struct ldap_url_desc; /* avoid pulling in <ldap.h> */
46 
47 #define LDAP_PVT_URL_PARSE_NONE			(0x00U)
48 #define LDAP_PVT_URL_PARSE_NOEMPTY_HOST		(0x01U)
49 #define LDAP_PVT_URL_PARSE_DEF_PORT		(0x02U)
50 #define LDAP_PVT_URL_PARSE_NOEMPTY_DN		(0x04U)
51 #define LDAP_PVT_URL_PARSE_NODEF_SCOPE		(0x08U)
52 #define	LDAP_PVT_URL_PARSE_HISTORIC		(LDAP_PVT_URL_PARSE_NODEF_SCOPE | \
53 						 LDAP_PVT_URL_PARSE_NOEMPTY_HOST | \
54 						 LDAP_PVT_URL_PARSE_DEF_PORT)
55 
56 LDAP_F( int )
57 ldap_url_parse_ext LDAP_P((
58 	LDAP_CONST char *url,
59 	struct ldap_url_desc **ludpp,
60 	unsigned flags ));
61 
62 LDAP_F (int) ldap_url_parselist LDAP_P((	/* deprecated, use ldap_url_parselist_ext() */
63 	struct ldap_url_desc **ludlist,
64 	const char *url ));
65 
66 LDAP_F (int) ldap_url_parselist_ext LDAP_P((
67 	struct ldap_url_desc **ludlist,
68 	const char *url,
69 	const char *sep,
70 	unsigned flags ));
71 
72 LDAP_F (char *) ldap_url_list2urls LDAP_P((
73 	struct ldap_url_desc *ludlist ));
74 
75 LDAP_F (void) ldap_free_urllist LDAP_P((
76 	struct ldap_url_desc *ludlist ));
77 
78 LDAP_F (int) ldap_pvt_scope2bv LDAP_P ((
79 	int scope, struct berval *bv ));
80 
81 LDAP_F (LDAP_CONST char *) ldap_pvt_scope2str LDAP_P ((
82 	int scope ));
83 
84 LDAP_F (int) ldap_pvt_bv2scope LDAP_P ((
85 	struct berval *bv ));
86 
87 LDAP_F (int) ldap_pvt_str2scope LDAP_P ((
88 	LDAP_CONST char * ));
89 
90 LDAP_F( char * )
91 ldap_pvt_ctime LDAP_P((
92 	const time_t *tp,
93 	char *buf ));
94 
95 # if defined( HAVE_GMTIME_R )
96 #   define USE_GMTIME_R
97 #   define ldap_pvt_gmtime(timep, result) gmtime_r((timep), (result))
98 # else
99 LDAP_F( struct tm * )
100 ldap_pvt_gmtime LDAP_P((
101 	LDAP_CONST time_t *timep,
102 	struct tm *result ));
103 #endif
104 
105 # if defined( HAVE_LOCALTIME_R )
106 #   define USE_LOCALTIME_R
107 #   define ldap_pvt_localtime(timep, result) localtime_r((timep), (result))
108 # else
109 LDAP_F( struct tm * )
110 ldap_pvt_localtime LDAP_P((
111 	LDAP_CONST time_t *timep,
112 	struct tm *result ));
113 # endif
114 
115 #if defined( USE_GMTIME_R ) && defined( USE_LOCALTIME_R )
116 #   define ldap_pvt_gmtime_lock() (0)
117 #   define ldap_pvt_gmtime_unlock() (0)
118 #else
119 LDAP_F( int )
120 ldap_pvt_gmtime_lock LDAP_P(( void ));
121 
122 LDAP_F( int )
123 ldap_pvt_gmtime_unlock LDAP_P(( void ));
124 #endif /* USE_GMTIME_R && USE_LOCALTIME_R */
125 
126 /* Get current time as a structured time */
127 struct lutil_tm;
128 LDAP_F( void )
129 ldap_pvt_gettime LDAP_P(( struct lutil_tm * ));
130 
131 #ifdef _WIN32
132 #define gettimeofday(tv,tz)	ldap_pvt_gettimeofday(tv,tz)
133 struct timeval;
134 LDAP_F( int )
135 ldap_pvt_gettimeofday LDAP_P(( struct timeval *tv, void *unused ));
136 #ifndef CLOCK_REALTIME
137 #define CLOCK_REALTIME	0
138 #endif
139 #define clock_gettime(clkid,tv)	ldap_pvt_clock_gettime(clkid,tv)
140 struct timespec;
141 LDAP_F( int )
142 ldap_pvt_clock_gettime LDAP_P(( int clkid, struct timespec *tv ));
143 #endif
144 
145 /* use this macro to allocate buffer for ldap_pvt_csnstr */
146 #define LDAP_PVT_CSNSTR_BUFSIZE	64
147 LDAP_F( size_t )
148 ldap_pvt_csnstr( char *buf, size_t len, unsigned int replica, unsigned int mod );
149 
150 LDAP_F( char *) ldap_pvt_get_fqdn LDAP_P(( char * ));
151 
152 struct hostent;	/* avoid pulling in <netdb.h> */
153 
154 LDAP_F( int )
155 ldap_pvt_gethostbyname_a LDAP_P((
156 	const char *name,
157 	struct hostent *resbuf,
158 	char **buf,
159 	struct hostent **result,
160 	int *herrno_ptr ));
161 
162 LDAP_F( int )
163 ldap_pvt_gethostbyaddr_a LDAP_P((
164 	const char *addr,
165 	int len,
166 	int type,
167 	struct hostent *resbuf,
168 	char **buf,
169 	struct hostent **result,
170 	int *herrno_ptr ));
171 
172 struct sockaddr;
173 
174 LDAP_F( int )
175 ldap_pvt_get_hname LDAP_P((
176 	const struct sockaddr * sa,
177 	int salen,
178 	char *name,
179 	int namelen,
180 	char **herr ));
181 
182 #ifdef LDAP_PF_LOCAL
183 #define LDAP_IPADDRLEN	(MAXPATHLEN + sizeof("PATH="))
184 #elif defined(LDAP_PF_INET6)
185 #define LDAP_IPADDRLEN	sizeof("IP=[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")
186 #else
187 #define LDAP_IPADDRLEN	sizeof("IP=255.255.255.255:65336")
188 #endif
189 
190 typedef union Sockaddr Sockaddr;
191 
192 LDAP_F (void)
193 ldap_pvt_sockaddrstr LDAP_P((
194 	Sockaddr *sa,
195 	struct berval * ));
196 
197 
198 /* charray.c */
199 
200 LDAP_F( int )
201 ldap_charray_add LDAP_P((
202     char	***a,
203     const char *s ));
204 
205 LDAP_F( int )
206 ldap_charray_merge LDAP_P((
207     char	***a,
208     char	**s ));
209 
210 LDAP_F( void )
211 ldap_charray_free LDAP_P(( char **a ));
212 
213 LDAP_F( int )
214 ldap_charray_inlist LDAP_P((
215     char	**a,
216     const char *s ));
217 
218 LDAP_F( char ** )
219 ldap_charray_dup LDAP_P(( char **a ));
220 
221 LDAP_F( char ** )
222 ldap_str2charray LDAP_P((
223 	const char *str,
224 	const char *brkstr ));
225 
226 LDAP_F( char * )
227 ldap_charray2str LDAP_P((
228 	char **array, const char* sep ));
229 
230 /* getdn.c */
231 
232 #ifdef LDAP_AVA_NULL	/* in ldap.h */
233 LDAP_F( void ) ldap_rdnfree_x LDAP_P(( LDAPRDN rdn, void *ctx ));
234 LDAP_F( void ) ldap_dnfree_x LDAP_P(( LDAPDN dn, void *ctx ));
235 
236 LDAP_F( int ) ldap_bv2dn_x LDAP_P((
237 	struct berval *bv, LDAPDN *dn, unsigned flags, void *ctx ));
238 LDAP_F( int ) ldap_dn2bv_x LDAP_P((
239 	LDAPDN dn, struct berval *bv, unsigned flags, void *ctx ));
240 LDAP_F( int ) ldap_bv2rdn_x LDAP_P((
241 	struct berval *, LDAPRDN *, char **, unsigned flags, void *ctx ));
242 LDAP_F( int ) ldap_rdn2bv_x LDAP_P((
243 	LDAPRDN rdn, struct berval *bv, unsigned flags, void *ctx ));
244 #endif /* LDAP_AVA_NULL */
245 
246 /* url.c */
247 LDAP_F (void) ldap_pvt_hex_unescape LDAP_P(( char *s ));
248 
249 /*
250  * these macros assume 'x' is an ASCII x
251  * and assume the "C" locale
252  */
253 #define LDAP_ASCII(c)		(!((c) & 0x80))
254 #define LDAP_SPACE(c)		((c) == ' ' || (c) == '\t' || (c) == '\n')
255 #define LDAP_DIGIT(c)		((c) >= '0' && (c) <= '9')
256 #define LDAP_LOWER(c)		((c) >= 'a' && (c) <= 'z')
257 #define LDAP_UPPER(c)		((c) >= 'A' && (c) <= 'Z')
258 #define LDAP_ALPHA(c)		(LDAP_LOWER(c) || LDAP_UPPER(c))
259 #define LDAP_ALNUM(c)		(LDAP_ALPHA(c) || LDAP_DIGIT(c))
260 
261 #define LDAP_LDH(c)			(LDAP_ALNUM(c) || (c) == '-')
262 
263 #define LDAP_HEXLOWER(c)	((c) >= 'a' && (c) <= 'f')
264 #define LDAP_HEXUPPER(c)	((c) >= 'A' && (c) <= 'F')
265 #define LDAP_HEX(c)			(LDAP_DIGIT(c) || \
266 								LDAP_HEXLOWER(c) || LDAP_HEXUPPER(c))
267 
268 /* controls.c */
269 struct ldapcontrol;
270 LDAP_F (int)
271 ldap_pvt_put_control LDAP_P((
272 	const struct ldapcontrol *c,
273 	BerElement *ber ));
274 LDAP_F (int) ldap_pvt_get_controls LDAP_P((
275 	BerElement *be,
276 	struct ldapcontrol ***ctrlsp));
277 
278 #ifdef HAVE_CYRUS_SASL
279 /* cyrus.c */
280 struct sasl_security_properties; /* avoid pulling in <sasl.h> */
281 LDAP_F (int) ldap_pvt_sasl_secprops LDAP_P((
282 	const char *in,
283 	struct sasl_security_properties *secprops ));
284 LDAP_F (void) ldap_pvt_sasl_secprops_unparse LDAP_P((
285 	struct sasl_security_properties *secprops,
286 	struct berval *out ));
287 
288 LDAP_F (void *) ldap_pvt_sasl_mutex_new LDAP_P((void));
289 LDAP_F (int) ldap_pvt_sasl_mutex_lock LDAP_P((void *mutex));
290 LDAP_F (int) ldap_pvt_sasl_mutex_unlock LDAP_P((void *mutex));
291 LDAP_F (void) ldap_pvt_sasl_mutex_dispose LDAP_P((void *mutex));
292 
293 LDAP_F (int) ldap_pvt_sasl_cbinding_parse LDAP_P(( const char *arg ));
294 LDAP_F (void *) ldap_pvt_sasl_cbinding LDAP_P(( void *ssl, int type,
295 					        int is_server ));
296 #endif /* HAVE_CYRUS_SASL */
297 
298 struct sockbuf; /* avoid pulling in <lber.h> */
299 LDAP_F (int) ldap_pvt_sasl_install LDAP_P(( struct sockbuf *, void * ));
300 LDAP_F (void) ldap_pvt_sasl_remove LDAP_P(( struct sockbuf * ));
301 
302 LDAP_F (int) ldap_pvt_tls_check_hostname LDAP_P(( LDAP *, void *, const char *));
303 
304 
305 /*
306  * SASL encryption support for LBER Sockbufs
307  */
308 
309 struct sb_sasl_generic_data;
310 
311 struct sb_sasl_generic_ops {
312 	void (*init)(struct sb_sasl_generic_data *p,
313 		     ber_len_t *min_send,
314 		     ber_len_t *max_send,
315 		     ber_len_t *max_recv);
316 	ber_int_t (*encode)(struct sb_sasl_generic_data *p,
317 			    unsigned char *buf,
318 			    ber_len_t len,
319 			    Sockbuf_Buf *dst);
320 	ber_int_t (*decode)(struct sb_sasl_generic_data *p,
321 			    const Sockbuf_Buf *src,
322 			    Sockbuf_Buf *dst);
323 	void (*reset_buf)(struct sb_sasl_generic_data *p,
324 			  Sockbuf_Buf *buf);
325 	void (*fini)(struct sb_sasl_generic_data *p);
326 };
327 
328 struct sb_sasl_generic_install {
329 	const struct sb_sasl_generic_ops 	*ops;
330 	void					*ops_private;
331 };
332 
333 struct sb_sasl_generic_data {
334 	const struct sb_sasl_generic_ops 	*ops;
335 	void					*ops_private;
336 	Sockbuf_IO_Desc				*sbiod;
337 	ber_len_t				min_send;
338 	ber_len_t				max_send;
339 	ber_len_t				max_recv;
340 	Sockbuf_Buf				sec_buf_in;
341 	Sockbuf_Buf				buf_in;
342 	Sockbuf_Buf				buf_out;
343 	unsigned int				flags;
344 #define LDAP_PVT_SASL_PARTIAL_WRITE	1
345 };
346 
347 #ifndef LDAP_PVT_SASL_LOCAL_SSF
348 #define LDAP_PVT_SASL_LOCAL_SSF	71	/* SSF for Unix Domain Sockets */
349 #endif /* ! LDAP_PVT_SASL_LOCAL_SSF */
350 
351 struct ldap;
352 struct ldapmsg;
353 struct ldifrecord;
354 
355 /* abandon */
356 LDAP_F ( int ) ldap_pvt_discard LDAP_P((
357 	struct ldap *ld, ber_int_t msgid ));
358 
359 /* init.c */
360 LDAP_F( int )
361 ldap_pvt_conf_option LDAP_P((
362 	char *cmd, char *opt, int userconf ));
363 
364 /* ldifutil.c */
365 LDAP_F( int )
366 ldap_parse_ldif_record_x LDAP_P((
367 	struct berval *rbuf,
368 	unsigned long linenum,
369 	struct ldifrecord *lr,
370 	const char *errstr,
371 	unsigned int flags,
372 	void *ctx ));
373 
374 /* messages.c */
375 LDAP_F( BerElement * )
376 ldap_get_message_ber LDAP_P((
377 	struct ldapmsg * ));
378 
379 /* open */
380 LDAP_F (int) ldap_open_internal_connection LDAP_P((
381 	struct ldap **ldp, ber_socket_t *fdp ));
382 
383 /* sasl.c */
384 LDAP_F (int) ldap_pvt_sasl_generic_install LDAP_P(( Sockbuf *sb,
385 	struct sb_sasl_generic_install *install_arg ));
386 LDAP_F (void) ldap_pvt_sasl_generic_remove LDAP_P(( Sockbuf *sb ));
387 
388 /* search.c */
389 LDAP_F( int ) ldap_pvt_put_filter LDAP_P((
390 	BerElement *ber,
391 	const char *str ));
392 
393 LDAP_F( char * )
394 ldap_pvt_find_wildcard LDAP_P((	const char *s ));
395 
396 LDAP_F( ber_slen_t )
397 ldap_pvt_filter_value_unescape LDAP_P(( char *filter ));
398 
399 LDAP_F( ber_len_t )
400 ldap_bv2escaped_filter_value_len LDAP_P(( struct berval *in ));
401 
402 LDAP_F( int )
403 ldap_bv2escaped_filter_value_x LDAP_P(( struct berval *in, struct berval *out,
404 	int inplace, void *ctx ));
405 
406 LDAP_F (int) ldap_pvt_search LDAP_P((
407 	struct ldap *ld,
408 	LDAP_CONST char *base,
409 	int scope,
410 	LDAP_CONST char *filter,
411 	char **attrs,
412 	int attrsonly,
413 	struct ldapcontrol **sctrls,
414 	struct ldapcontrol **cctrls,
415 	struct timeval *timeout,
416 	int sizelimit,
417 	int deref,
418 	int *msgidp ));
419 
420 LDAP_F(int) ldap_pvt_search_s LDAP_P((
421 	struct ldap *ld,
422 	LDAP_CONST char *base,
423 	int scope,
424 	LDAP_CONST char *filter,
425 	char **attrs,
426 	int attrsonly,
427 	struct ldapcontrol **sctrls,
428 	struct ldapcontrol **cctrls,
429 	struct timeval *timeout,
430 	int sizelimit,
431 	int deref,
432 	struct ldapmsg **res ));
433 
434 /* string.c */
435 LDAP_F( char * )
436 ldap_pvt_str2upper LDAP_P(( char *str ));
437 
438 LDAP_F( char * )
439 ldap_pvt_str2lower LDAP_P(( char *str ));
440 
441 LDAP_F( struct berval * )
442 ldap_pvt_str2upperbv LDAP_P(( char *str, struct berval *bv ));
443 
444 LDAP_F( struct berval * )
445 ldap_pvt_str2lowerbv LDAP_P(( char *str, struct berval *bv ));
446 
447 /* tls.c */
448 LDAP_F (int) ldap_pvt_tls_config LDAP_P(( struct ldap *ld,
449 	int option, const char *arg ));
450 LDAP_F (int) ldap_pvt_tls_get_option LDAP_P(( struct ldap *ld,
451 	int option, void *arg ));
452 LDAP_F (int) ldap_pvt_tls_set_option LDAP_P(( struct ldap *ld,
453 	int option, void *arg ));
454 
455 LDAP_F (void) ldap_pvt_tls_destroy LDAP_P(( void ));
456 LDAP_F (int) ldap_pvt_tls_init LDAP_P(( int do_threads ));
457 LDAP_F (int) ldap_pvt_tls_init_def_ctx LDAP_P(( int is_server ));
458 LDAP_F (int) ldap_pvt_tls_accept LDAP_P(( Sockbuf *sb, void *ctx_arg ));
459 LDAP_F (int) ldap_pvt_tls_connect LDAP_P(( struct ldap *ld, Sockbuf *sb, const char *host ));
460 LDAP_F (int) ldap_pvt_tls_inplace LDAP_P(( Sockbuf *sb ));
461 LDAP_F (void *) ldap_pvt_tls_sb_ctx LDAP_P(( Sockbuf *sb ));
462 LDAP_F (void) ldap_pvt_tls_ctx_free LDAP_P(( void * ));
463 
464 typedef int LDAPDN_rewrite_dummy LDAP_P (( void *dn, unsigned flags ));
465 
466 typedef int (LDAP_TLS_CONNECT_CB) LDAP_P (( struct ldap *ld, void *ssl,
467 	void *ctx, void *arg ));
468 
469 LDAP_F (int) ldap_pvt_tls_get_my_dn LDAP_P(( void *ctx, struct berval *dn,
470 	LDAPDN_rewrite_dummy *func, unsigned flags ));
471 LDAP_F (int) ldap_pvt_tls_get_peer_dn LDAP_P(( void *ctx, struct berval *dn,
472 	LDAPDN_rewrite_dummy *func, unsigned flags ));
473 LDAP_F (int) ldap_pvt_tls_get_strength LDAP_P(( void *ctx ));
474 LDAP_F (int) ldap_pvt_tls_get_unique LDAP_P(( void *ctx, struct berval *buf, int is_server ));
475 LDAP_F (int) ldap_pvt_tls_get_endpoint LDAP_P(( void *ctx, struct berval *buf, int is_server ));
476 LDAP_F (const char *) ldap_pvt_tls_get_version LDAP_P(( void *ctx ));
477 LDAP_F (const char *) ldap_pvt_tls_get_cipher LDAP_P(( void *ctx ));
478 
479 LDAP_END_DECL
480 
481 /*
482  * Multiple precision stuff
483  *
484  * May use OpenSSL's BIGNUM if built with TLS,
485  * or GNU's multiple precision library. But if
486  * long long is available, that's big enough
487  * and much more efficient.
488  *
489  * If none is available, unsigned long data is used.
490  */
491 
492 LDAP_BEGIN_DECL
493 
494 #ifdef USE_MP_BIGNUM
495 /*
496  * Use OpenSSL's BIGNUM
497  */
498 #include <openssl/crypto.h>
499 #include <openssl/bn.h>
500 
501 typedef	BIGNUM* ldap_pvt_mp_t;
502 #define	LDAP_PVT_MP_INIT	(NULL)
503 
504 #define	ldap_pvt_mp_init(mp) \
505 	do { (mp) = BN_new(); } while (0)
506 
507 /* FIXME: we rely on mpr being initialized */
508 #define	ldap_pvt_mp_init_set(mpr,mpv) \
509 	do { ldap_pvt_mp_init((mpr)); BN_add((mpr), (mpr), (mpv)); } while (0)
510 
511 #define	ldap_pvt_mp_add(mpr,mpv) \
512 	BN_add((mpr), (mpr), (mpv))
513 
514 #define	ldap_pvt_mp_add_ulong(mp,v) \
515 	BN_add_word((mp), (v))
516 
517 #define ldap_pvt_mp_clear(mp) \
518 	do { BN_free((mp)); (mp) = 0; } while (0)
519 
520 #elif defined(USE_MP_GMP)
521 /*
522  * Use GNU's multiple precision library
523  */
524 #include <gmp.h>
525 
526 typedef mpz_t		ldap_pvt_mp_t;
527 #define	LDAP_PVT_MP_INIT	{ 0 }
528 
529 #define ldap_pvt_mp_init(mp) \
530 	mpz_init((mp))
531 
532 #define	ldap_pvt_mp_init_set(mpr,mpv) \
533 	mpz_init_set((mpr), (mpv))
534 
535 #define	ldap_pvt_mp_add(mpr,mpv) \
536 	mpz_add((mpr), (mpr), (mpv))
537 
538 #define	ldap_pvt_mp_add_ulong(mp,v)	\
539 	mpz_add_ui((mp), (mp), (v))
540 
541 #define ldap_pvt_mp_clear(mp) \
542 	mpz_clear((mp))
543 
544 #else
545 /*
546  * Use unsigned long long
547  */
548 
549 #ifdef USE_MP_LONG_LONG
550 typedef	unsigned long long	ldap_pvt_mp_t;
551 #define	LDAP_PVT_MP_INIT	(0LL)
552 #elif defined(USE_MP_LONG)
553 typedef	unsigned long		ldap_pvt_mp_t;
554 #define	LDAP_PVT_MP_INIT	(0L)
555 #elif defined(HAVE_LONG_LONG)
556 typedef	unsigned long long	ldap_pvt_mp_t;
557 #define	LDAP_PVT_MP_INIT	(0LL)
558 #else
559 typedef	unsigned long		ldap_pvt_mp_t;
560 #define	LDAP_PVT_MP_INIT	(0L)
561 #endif
562 
563 #define ldap_pvt_mp_init(mp) \
564 	do { (mp) = 0; } while (0)
565 
566 #define	ldap_pvt_mp_init_set(mpr,mpv) \
567 	do { (mpr) = (mpv); } while (0)
568 
569 #define	ldap_pvt_mp_add(mpr,mpv) \
570 	do { (mpr) += (mpv); } while (0)
571 
572 #define	ldap_pvt_mp_add_ulong(mp,v) \
573 	do { (mp) += (v); } while (0)
574 
575 #define ldap_pvt_mp_clear(mp) \
576 	do { (mp) = 0; } while (0)
577 
578 #endif /* MP */
579 
580 #include "ldap_pvt_uc.h"
581 
582 LDAP_END_DECL
583 
584 LDAP_BEGIN_DECL
585 
586 #include <limits.h>				/* get CHAR_BIT */
587 
588 /* Buffer space for sign, decimal digits and \0. Note: log10(2) < 146/485. */
589 #define LDAP_PVT_INTTYPE_CHARS(type) (((sizeof(type)*CHAR_BIT-1)*146)/485 + 3)
590 
591 LDAP_END_DECL
592 
593 #endif /* _LDAP_PVT_H */
594