1 /* $OpenLDAP$ */
2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
3  *
4  * Copyright 1998-2021 The OpenLDAP Foundation.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted only as authorized by the OpenLDAP
9  * Public License.
10  *
11  * A copy of this license is available in file LICENSE in the
12  * top-level directory of the distribution or, alternatively, at
13  * <http://www.OpenLDAP.org/license.html>.
14  */
15 
16 /*
17  * lber_pvt.h - Header for ber_pvt_ functions.
18  * These are meant to be internal to OpenLDAP Software.
19  */
20 
21 #ifndef _LBER_PVT_H
22 #define _LBER_PVT_H 1
23 
24 #include <lber.h>
25 
26 LDAP_BEGIN_DECL
27 
28 /* for allocating aligned buffers (on the stack) */
29 #define LBER_ALIGNED_BUFFER(uname,size) \
30 	union uname { \
31 		char buffer[size]; \
32 		/* force alignment */ \
33 		int ialign; \
34 		long lalign; \
35 		float falign; \
36 		double dalign; \
37 		char* palign; \
38 	}
39 
40 #define LBER_ELEMENT_SIZEOF (256) /* must be >= sizeof(BerElement) */
41 typedef LBER_ALIGNED_BUFFER(lber_berelement_u,LBER_ELEMENT_SIZEOF)
42 	BerElementBuffer;
43 
44 typedef struct sockbuf_buf {
45 	ber_len_t		buf_size;
46 	ber_len_t		buf_ptr;
47 	ber_len_t		buf_end;
48 	char			*buf_base;
49 } Sockbuf_Buf;
50 
51 /*
52  * bprint.c
53  */
54 LBER_V( BER_LOG_PRINT_FN ) ber_pvt_log_print;
55 
56 LBER_F( int )
57 ber_pvt_log_printf LDAP_P((
58 	int errlvl,
59 	int loglvl,
60 	const char *fmt,
61 	... )) LDAP_GCCATTR((format(printf, 3, 4)));
62 
63 /*
64  * sockbuf.c
65  */
66 LBER_F( ber_slen_t )
67 ber_pvt_sb_do_write LDAP_P(( Sockbuf_IO_Desc *sbiod, Sockbuf_Buf *buf_out ));
68 
69 LBER_F( void )
70 ber_pvt_sb_buf_init LDAP_P(( Sockbuf_Buf *buf ));
71 
72 LBER_F( void )
73 ber_pvt_sb_buf_destroy LDAP_P(( Sockbuf_Buf *buf ));
74 
75 LBER_F( int )
76 ber_pvt_sb_grow_buffer LDAP_P(( Sockbuf_Buf *buf, ber_len_t minsize ));
77 
78 LBER_F( ber_len_t )
79 ber_pvt_sb_copy_out LDAP_P(( Sockbuf_Buf *sbb, char *buf, ber_len_t len ));
80 
81 LBER_F( int )
82 ber_pvt_socket_set_nonblock LDAP_P(( ber_socket_t sd, int nb ));
83 
84 /*
85  * memory.c
86  */
87 LBER_F( void * )
88 ber_memalloc_x LDAP_P((
89 	ber_len_t s, void *ctx));
90 
91 LBER_F( void * )
92 ber_memrealloc_x LDAP_P((
93 	void* p,
94 	ber_len_t s, void *ctx ));
95 
96 LBER_F( void * )
97 ber_memcalloc_x LDAP_P((
98 	ber_len_t n,
99 	ber_len_t s, void *ctx ));
100 
101 LBER_F( void )
102 ber_memfree_x LDAP_P((
103 	void* p, void *ctx ));
104 
105 LBER_F( void )
106 ber_memvfree_x LDAP_P((
107 	void** vector, void *ctx ));
108 
109 LBER_F( void )
110 ber_bvfree_x LDAP_P((
111 	struct berval *bv, void *ctx ));
112 
113 LBER_F( void )
114 ber_bvecfree_x LDAP_P((
115 	struct berval **bv, void *ctx ));
116 
117 LBER_F( int )
118 ber_bvecadd_x LDAP_P((
119 	struct berval ***bvec,
120 	struct berval *bv, void *ctx ));
121 
122 LBER_F( struct berval * )
123 ber_dupbv_x LDAP_P((
124 	struct berval *dst, struct berval *src, void *ctx ));
125 
126 LBER_F( struct berval * )
127 ber_str2bv_x LDAP_P((
128 	LDAP_CONST char *, ber_len_t len, int dup, struct berval *bv, void *ctx));
129 
130 LBER_F( struct berval * )
131 ber_mem2bv_x LDAP_P((
132 	LDAP_CONST char *, ber_len_t len, int dup, struct berval *bv, void *ctx));
133 
134 LBER_F( char * )
135 ber_strdup_x LDAP_P((
136 	LDAP_CONST char *, void *ctx ));
137 
138 LBER_F( struct berval * )
139 ber_bvreplace_x LDAP_P((
140 	struct berval *dst, LDAP_CONST struct berval *src, void *ctx ));
141 
142 LBER_F( void )
143 ber_bvarray_free_x LDAP_P(( BerVarray p, void *ctx ));
144 
145 LBER_F( int )
146 ber_bvarray_add_x LDAP_P(( BerVarray *p, BerValue *bv, void *ctx ));
147 
148 LBER_F( int )
149 ber_bvarray_dup_x LDAP_P(( BerVarray *dst, BerVarray src, void *ctx ));
150 
151 #if 0
152 #define ber_bvstrcmp(v1,v2) \
153 	((v1)->bv_len < (v2)->bv_len \
154 		? -1 : ((v1)->bv_len > (v2)->bv_len \
155 			? 1 : strncmp((v1)->bv_val, (v2)->bv_val, (v1)->bv_len) ))
156 #else
157 	/* avoid strncmp() */
158 #define ber_bvstrcmp(v1,v2)	ber_bvcmp((v1),(v2))
159 #endif
160 
161 #define ber_bvstrcasecmp(v1,v2) \
162 	((v1)->bv_len < (v2)->bv_len \
163 		? -1 : ((v1)->bv_len > (v2)->bv_len \
164 			? 1 : strncasecmp((v1)->bv_val, (v2)->bv_val, (v1)->bv_len) ))
165 
166 #define ber_bvccmp(v1,c) \
167 	( (v1)->bv_len == 1 && (v1)->bv_val[0] == (c) )
168 
169 #define ber_strccmp(s,c) \
170 	( (s)[0] == (c) && (s)[1] == '\0' )
171 
172 #define ber_bvchr(bv,c) \
173 	((char *) memchr( (bv)->bv_val, (c), (bv)->bv_len ))
174 
175 #define ber_bvrchr(bv,c) \
176 	((char *) lutil_memrchr( (bv)->bv_val, (c), (bv)->bv_len ))
177 
178 #define ber_bvchr_post(dst,bv,c) \
179 	do { \
180 		(dst)->bv_val = memchr( (bv)->bv_val, (c), (bv)->bv_len ); \
181 		(dst)->bv_len = (dst)->bv_val ? (bv)->bv_len - ((dst)->bv_val - (bv)->bv_val) : 0; \
182 	} while (0)
183 
184 #define ber_bvchr_pre(dst,bv,c) \
185 	do { \
186 		(dst)->bv_val = memchr( (bv)->bv_val, (c), (bv)->bv_len ); \
187 		(dst)->bv_len = (dst)->bv_val ? ((dst)->bv_val - (bv)->bv_val) : (bv)->bv_len; \
188 		(dst)->bv_val = (bv)->bv_val; \
189 	} while (0)
190 
191 #define ber_bvrchr_post(dst,bv,c) \
192 	do { \
193 		(dst)->bv_val = lutil_memrchr( (bv)->bv_val, (c), (bv)->bv_len ); \
194 		(dst)->bv_len = (dst)->bv_val ? (bv)->bv_len - ((dst)->bv_val - (bv)->bv_val) : 0; \
195 	} while (0)
196 
197 #define ber_bvrchr_pre(dst,bv,c) \
198 	do { \
199 		(dst)->bv_val = lutil_memrchr( (bv)->bv_val, (c), (bv)->bv_len ); \
200 		(dst)->bv_len = (dst)->bv_val ? ((dst)->bv_val - (bv)->bv_val) : (bv)->bv_len; \
201 		(dst)->bv_val = (bv)->bv_val; \
202 	} while (0)
203 
204 #define BER_STRLENOF(s)	(sizeof(s)-1)
205 #define BER_BVC(s)		{ BER_STRLENOF(s), (char *)(s) }
206 #define BER_BVNULL		{ 0L, NULL }
207 #define BER_BVZERO(bv) \
208 	do { \
209 		(bv)->bv_len = 0; \
210 		(bv)->bv_val = NULL; \
211 	} while (0)
212 #define BER_BVSTR(bv,s)	\
213 	do { \
214 		(bv)->bv_len = BER_STRLENOF(s); \
215 		(bv)->bv_val = (s); \
216 	} while (0)
217 #define BER_BVISNULL(bv)	((bv)->bv_val == NULL)
218 #define BER_BVISEMPTY(bv)	((bv)->bv_len == 0)
219 
220 LDAP_END_DECL
221 
222 #endif
223 
224