2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1999-2005 The OpenLDAP Foundation.
5 * Portions Copyright 1999 Dmitry Kovalev.
6 * Portions Copyright 2002 Pierangelo Masarati.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
18 * This work was initially developed by Dmitry Kovalev for inclusion
19 * by OpenLDAP Software. Additional significant contributors include
20 * Pierangelo Masarati.
26 #include <sys/types.h>
27 #include "ac/string.h"
29 #include "ac/stdarg.h"
32 #include "proto-sql.h"
35 #define BACKSQL_MAX(a,b) ((a)>(b)?(a):(b))
36 #define BACKSQL_MIN(a,b) ((a)<(b)?(a):(b))
38 #define BACKSQL_STR_GROW 256
40 char backsql_def_oc_query[] =
41 "SELECT id,name,keytbl,keycol,create_proc,delete_proc,expect_return "
42 "FROM ldap_oc_mappings";
43 char backsql_def_needs_select_oc_query[] =
44 "SELECT id,name,keytbl,keycol,create_proc,create_keyval,delete_proc,"
45 "expect_return FROM ldap_oc_mappings";
46 char backsql_def_at_query[] =
47 "SELECT name,sel_expr,from_tbls,join_where,add_proc,delete_proc,"
48 "param_order,expect_return,sel_expr_u FROM ldap_attr_mappings "
50 char backsql_def_delentry_stmt[] = "DELETE FROM ldap_entries WHERE id=?";
51 char backsql_def_renentry_stmt[] =
52 "UPDATE ldap_entries SET dn=?,parent=?,keyval=? WHERE id=?";
53 char backsql_def_insentry_stmt[] =
54 "INSERT INTO ldap_entries (dn,oc_map_id,parent,keyval) "
56 char backsql_def_delobjclasses_stmt[] = "DELETE FROM ldap_entry_objclasses "
58 char backsql_def_subtree_cond[] = "ldap_entries.dn LIKE CONCAT('%',?)";
59 char backsql_def_upper_subtree_cond[] = "(ldap_entries.dn) LIKE CONCAT('%',?)";
60 char backsql_id_query[] = "SELECT id,keyval,oc_map_id,dn FROM ldap_entries WHERE ";
61 /* better ?||? or cast(?||? as varchar) */
62 char backsql_def_concat_func[] = "CONCAT(?,?)";
65 char backsql_check_dn_ru_query[] = "SELECT dn_ru FROM ldap_entries";
68 backsql_strcat( struct berbuf *dest, ... )
71 ber_len_t cdlen, cslen, grow;
75 assert( dest->bb_val.bv_val == NULL
76 || dest->bb_val.bv_len == strlen( dest->bb_val.bv_val ) );
79 Debug( LDAP_DEBUG_TRACE, "==>backsql_strcat()\n", 0, 0, 0 );
80 #endif /* BACKSQL_TRACE */
82 va_start( strs, dest );
83 if ( dest->bb_val.bv_val == NULL || dest->bb_len == 0 ) {
84 dest->bb_val.bv_val = (char *)ch_calloc( BACKSQL_STR_GROW,
86 dest->bb_val.bv_len = 0;
87 dest->bb_len = BACKSQL_STR_GROW;
89 cdlen = dest->bb_val.bv_len;
90 while ( ( cstr = va_arg( strs, char * ) ) != NULL ) {
91 cslen = strlen( cstr );
92 grow = BACKSQL_MAX( BACKSQL_STR_GROW, cslen );
93 if ( dest->bb_len - cdlen <= cslen ) {
97 Debug( LDAP_DEBUG_TRACE, "backsql_strcat(): "
98 "buflen=%d, cdlen=%d, cslen=%d "
99 "-- reallocating dest\n",
100 dest->bb_len, cdlen + 1, cslen );
101 #endif /* BACKSQL_TRACE */
103 tmp_dest = (char *)ch_realloc( dest->bb_val.bv_val,
104 ( dest->bb_len ) + grow * sizeof( char ) );
105 if ( tmp_dest == NULL ) {
106 Debug( LDAP_DEBUG_ANY, "backsql_strcat(): "
107 "could not reallocate string buffer.\n",
111 dest->bb_val.bv_val = tmp_dest;
112 dest->bb_len += grow;
115 Debug( LDAP_DEBUG_TRACE, "backsql_strcat(): "
116 "new buflen=%d, dest=%p\n",
117 dest->bb_len, dest, 0 );
118 #endif /* BACKSQL_TRACE */
120 AC_MEMCPY( dest->bb_val.bv_val + cdlen, cstr, cslen + 1 );
126 Debug( LDAP_DEBUG_TRACE, "<==backsql_strcat() (dest=\"%s\")\n",
127 dest->bb_val.bv_val, 0, 0 );
128 #endif /* BACKSQL_TRACE */
130 dest->bb_val.bv_len = cdlen;
136 backsql_strfcat( struct berbuf *dest, const char *fmt, ... )
143 assert( dest->bb_len == 0 || dest->bb_len > dest->bb_val.bv_len );
144 assert( dest->bb_val.bv_val == NULL
145 || dest->bb_val.bv_len == strlen( dest->bb_val.bv_val ) );
148 Debug( LDAP_DEBUG_TRACE, "==>backsql_strfcat()\n", 0, 0, 0 );
149 #endif /* BACKSQL_TRACE */
151 va_start( strs, fmt );
152 if ( dest->bb_val.bv_val == NULL || dest->bb_len == 0 ) {
153 dest->bb_val.bv_val = (char *)ch_calloc( BACKSQL_STR_GROW,
155 dest->bb_val.bv_len = 0;
156 dest->bb_len = BACKSQL_STR_GROW;
159 cdlen = dest->bb_val.bv_len;
160 for ( ; fmt[0]; fmt++ ) {
161 ber_len_t cslen, grow;
162 char *cstr, cc[ 2 ] = { '\0', '\0' };
165 switch ( fmt[ 0 ] ) {
169 cbv = va_arg( strs, struct berval * );
174 /* length + string */
176 cslen = va_arg( strs, ber_len_t );
177 cstr = va_arg( strs, char * );
182 cstr = va_arg( strs, char * );
183 cslen = strlen( cstr );
189 * `char' is promoted to `int' when passed through `...'
191 cc[0] = va_arg( strs, int );
200 grow = BACKSQL_MAX( BACKSQL_STR_GROW, cslen );
201 if ( dest->bb_len - cdlen <= cslen ) {
205 Debug( LDAP_DEBUG_TRACE, "backsql_strfcat(): "
206 "buflen=%d, cdlen=%d, cslen=%d "
207 "-- reallocating dest\n",
208 dest->bb_len, cdlen + 1, cslen );
209 #endif /* BACKSQL_TRACE */
211 tmp_dest = (char *)ch_realloc( dest->bb_val.bv_val,
212 ( dest->bb_len ) + grow * sizeof( char ) );
213 if ( tmp_dest == NULL ) {
214 Debug( LDAP_DEBUG_ANY, "backsql_strfcat(): "
215 "could not reallocate string buffer.\n",
219 dest->bb_val.bv_val = tmp_dest;
220 dest->bb_len += grow * sizeof( char );
223 Debug( LDAP_DEBUG_TRACE, "backsql_strfcat(): "
224 "new buflen=%d, dest=%p\n", dest->bb_len, dest, 0 );
225 #endif /* BACKSQL_TRACE */
230 AC_MEMCPY( dest->bb_val.bv_val + cdlen, cstr, cslen + 1 );
237 Debug( LDAP_DEBUG_TRACE, "<==backsql_strfcat() (dest=\"%s\")\n",
238 dest->bb_val.bv_val, 0, 0 );
239 #endif /* BACKSQL_TRACE */
241 dest->bb_val.bv_len = cdlen;
247 backsql_entry_addattr(
249 AttributeDescription *ad,
256 Debug( LDAP_DEBUG_TRACE, "backsql_entry_addattr(\"%s\"): %s=%s\n",
257 e->e_name.bv_val, ad->ad_cname->bv_val, val->bv_val );
258 #endif /* BACKSQL_TRACE */
260 rc = attr_merge_normalize_one( e, ad, val, memctx );
262 if ( rc != LDAP_SUCCESS ) {
263 Debug( LDAP_DEBUG_TRACE, "backsql_entry_addattr(\"%s\"): "
264 "failed to merge value \"%s\" for attribute \"%s\"\n",
265 e->e_name.bv_val, val->bv_val, ad->ad_cname.bv_val );
270 Debug( LDAP_DEBUG_TRACE, "<==backsql_entry_addattr(\"%s\")\n",
271 e->e_name.bv_val, 0, 0 );
272 #endif /* BACKSQL_TRACE */
278 backsql_get_table_spec( char **p )
281 struct berbuf res = BB_NULL;
287 while ( **p && **p != ',' ) {
295 #define BACKSQL_NEXT_WORD { \
296 while ( *s && isspace( (unsigned char)*s ) ) s++; \
297 if ( !*s ) return res.bb_val.bv_val; \
299 while ( *q && !isspace( (unsigned char)*q ) ) q++; \
300 if ( *q ) *q++='\0'; \
305 backsql_strcat( &res, s, NULL );
309 if ( strcasecmp( s, "AS" ) == 0 ) {
314 /* oracle doesn't understand "AS" :( and other RDBMSes don't need it */
315 backsql_strcat( &res, " " BACKSQL_ALIASING BACKSQL_ALIASING_QUOTE, s, BACKSQL_ALIASING_QUOTE, NULL );
317 return res.bb_val.bv_val;
321 backsql_merge_from_clause(
322 struct berbuf *dest_from,
323 struct berval *src_from )
325 char *s, *p, *srcc, *pos, e;
326 struct berbuf res = BB_NULL;
329 Debug( LDAP_DEBUG_TRACE, "==>backsql_merge_from_clause(): "
330 "dest_from=\"%s\",src_from=\"%s\"\n",
331 dest_from ? dest_from->bb_val.bv_val : "<NULL>",
332 src_from->bv_val, 0 );
333 #endif /* BACKSQL_TRACE */
335 srcc = ch_strdup( src_from->bv_val );
338 if ( dest_from != NULL ) {
343 s = backsql_get_table_spec( &p );
346 Debug( LDAP_DEBUG_TRACE, "backsql_merge_from_clause(): "
347 "p=\"%s\" s=\"%s\"\n", p, s, 0 );
348 #endif /* BACKSQL_TRACE */
350 if ( res.bb_val.bv_val == NULL ) {
351 backsql_strcat( &res, s, NULL );
354 pos = strstr( res.bb_val.bv_val, s );
355 if ( pos == NULL || ( ( e = pos[ strlen( s ) ] ) != '\0' && e != ',' ) ) {
356 backsql_strfcat( &res, "cs", ',', s );
366 Debug( LDAP_DEBUG_TRACE, "<==backsql_merge_from_clause()\n", 0, 0, 0 );
367 #endif /* BACKSQL_TRACE */
376 * splits a pattern in components separated by '?'
377 * (double ?? are turned into single ? and left in the string)
378 * expected contains the number of expected occurrences of '?'
379 * (a negative value means parse as many as possible)
383 backsql_split_pattern(
384 const char *_pattern,
385 BerVarray *split_pattern,
388 char *pattern, *start, *end;
392 #define SPLIT_CHAR '?'
395 assert( split_pattern );
397 pattern = ch_strdup( _pattern );
400 end = strchr( start, SPLIT_CHAR );
401 for ( ; start; expected-- ) {
402 char *real_end = end;
405 if ( real_end == NULL ) {
406 real_end = start + strlen( start );
408 } else if ( real_end[ 1 ] == SPLIT_CHAR ) {
410 AC_MEMCPY( real_end, real_end + 1, strlen( real_end ) );
411 end = strchr( real_end + 1, SPLIT_CHAR );
415 real_len = real_end - start;
416 if ( real_len == 0 ) {
417 ber_str2bv( "", 0, 1, &bv );
419 ber_str2bv( start, real_len, 1, &bv );
422 ber_bvarray_add( split_pattern, &bv );
424 if ( expected == 0 ) {
434 end = strchr( start, SPLIT_CHAR );
446 backsql_prepare_pattern(
447 BerVarray split_pattern,
452 struct berbuf bb = BB_NULL;
456 for ( i = 0; values[i].bv_val; i++ ) {
457 if ( split_pattern[i].bv_val == NULL ) {
458 ch_free( bb.bb_val.bv_val );
461 backsql_strfcat( &bb, "b", &split_pattern[ i ] );
462 backsql_strfcat( &bb, "b", &values[ i ] );
465 if ( split_pattern[ i ].bv_val == NULL ) {
466 ch_free( bb.bb_val.bv_val );
470 backsql_strfcat( &bb, "b", &split_pattern[ i ] );
481 struct berval *entryUUID,
484 char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
486 #ifdef BACKSQL_ARBITRARY_KEY
489 #endif /* BACKSQL_ARBITRARY_KEY */
491 /* entryUUID is generated as "%08x-%04x-%04x-0000-eaddrXXX"
492 * with eid_oc_id as %08x and hi and lo eid_id as %04x-%04x */
497 #ifdef BACKSQL_ARBITRARY_KEY
498 snprintf( uuidbuf, sizeof( uuidbuf ),
499 "%08x-0000-0000-0000-000000000000",
500 ( id->eid_oc_id & 0xFFFFFFFF ) );
501 lmax = id->eid_keyval.bv_len < 12 ? id->eid_keyval.bv_len : 12;
502 for ( l = 0, i = 9; l < lmax; l++, i += 2 ) {
504 case STRLENOF( "00000000-0000" ):
505 case STRLENOF( "00000000-0000-0000" ):
506 case STRLENOF( "00000000-0000-0000-0000" ):
507 uuidbuf[ i++ ] = '-';
511 snprintf( &uuidbuf[ i ], 3, "%2x", id->eid_keyval.bv_val[ l ] );
515 #else /* ! BACKSQL_ARBITRARY_KEY */
516 /* note: works only with 32 bit architectures... */
517 snprintf( uuidbuf, sizeof( uuidbuf ),
518 "%08x-%04x-%04x-0000-000000000000",
519 ( id->eid_oc_id & 0xFFFFFFFF ),
520 ( ( id->eid_keyval & 0xFFFF0000 ) >> 020 /* 16 */ ),
521 ( id->eid_keyval & 0xFFFF ) );
522 #endif /* ! BACKSQL_ARBITRARY_KEY */
524 uuid.bv_val = uuidbuf;
525 uuid.bv_len = strlen( uuidbuf );
527 ber_dupbv_x( entryUUID, &uuid, memctx );
533 backsql_entryUUID_decode(
534 struct berval *entryUUID,
535 unsigned long *oc_id,
536 #ifdef BACKSQL_ARBITRARY_KEY
537 struct berval *keyval
538 #else /* ! BACKSQL_ARBITRARY_KEY */
539 unsigned long *keyval
540 #endif /* ! BACKSQL_ARBITRARY_KEY */
543 fprintf( stderr, "==> backsql_entryUUID_decode()\n" );
545 *oc_id = ( entryUUID->bv_val[0] << 030 /* 24 */ )
546 + ( entryUUID->bv_val[1] << 020 /* 16 */ )
547 + ( entryUUID->bv_val[2] << 010 /* 8 */ )
548 + entryUUID->bv_val[3];
550 #ifdef BACKSQL_ARBITRARY_KEY
552 #else /* ! BACKSQL_ARBITRARY_KEY */
553 *keyval = ( entryUUID->bv_val[4] << 030 /* 24 */ )
554 + ( entryUUID->bv_val[5] << 020 /* 16 */ )
555 + ( entryUUID->bv_val[6] << 010 /* 8 */ )
556 + entryUUID->bv_val[7];
557 #endif /* ! BACKSQL_ARBITRARY_KEY */
559 fprintf( stderr, "<== backsql_entryUUID_decode(): oc=%lu id=%lu\n",