1 /* entry.c - routines for dealing with entries */
7 #include <sys/socket.h>
13 static unsigned char *ebuf; /* buf returned by entry2str */
14 static unsigned char *ecur; /* pointer to end of currently used ebuf */
15 static int emaxsize;/* max size of ebuf */
26 int vlen, nvals, maxvals;
28 struct berval *vals[2];
32 * In string format, an entry looks like this:
36 * [<attr>:[:] <value>\n]
37 * [<tab><continuedvalue>\n]*
40 * If a double colon is used after a type, it means the
41 * following value is encoded as a base 64 string. This
42 * happens if the value contains a non-printing character
46 Debug( LDAP_DEBUG_TRACE, "=> str2entry\n",
47 s ? s : "NULL", 0, 0 );
49 e = (Entry *) ch_calloc( 1, sizeof(Entry) );
50 /* initialize reader/writer lock */
53 /* check to see if there's an id included */
55 if ( isdigit( *s ) ) {
57 if ( (s = str_getline( &next )) == NULL ) {
58 Debug( LDAP_DEBUG_TRACE,
59 "<= str2entry NULL (missing newline after id)\n",
70 while ( (s = str_getline( &next )) != NULL ) {
71 if ( *s == '\n' || *s == '\0' ) {
75 if ( str_parse_line( s, &type, &value, &vlen ) != 0 ) {
76 Debug( LDAP_DEBUG_TRACE,
77 "<= str2entry NULL (parse_line)\n", 0, 0, 0 );
81 if ( strcasecmp( type, ptype ) != 0 ) {
82 strncpy( ptype, type, sizeof(ptype) - 1 );
87 if ( strcasecmp( type, "dn" ) == 0 ) {
88 if ( e->e_dn != NULL ) {
89 Debug( LDAP_DEBUG_ANY,
90 "str2entry: entry %d has multiple dns \"%s\" and \"%s\" (second ignored)\n",
91 e->e_id, e->e_dn, value );
94 e->e_dn = strdup( value );
100 if ( attr_merge_fast( e, type, vals, nvals, 1, &maxvals, &a )
102 Debug( LDAP_DEBUG_TRACE,
103 "<= str2entry NULL (attr_merge)\n", 0, 0, 0 );
109 /* check to make sure there was a dn: line */
110 if ( e->e_dn == NULL ) {
111 Debug( LDAP_DEBUG_ANY, "str2entry: entry %d has no dn\n",
117 Debug( LDAP_DEBUG_TRACE, "<= str2entry 0x%x\n", e, 0, 0 );
122 #define GRABSIZE BUFSIZ
124 #define MAKE_SPACE( n ) { \
125 while ( ecur + (n) > ebuf + emaxsize ) { \
127 offset = (int) (ecur - ebuf); \
128 ebuf = (unsigned char *) ch_realloc( (char *) ebuf, \
129 emaxsize + GRABSIZE ); \
130 emaxsize += GRABSIZE; \
131 ecur = ebuf + offset; \
147 * In string format, an entry looks like this:
150 * [<attr>: <value>\n]*
158 sprintf( (char *) ecur, "%ld\n", e->e_id );
159 ecur = (unsigned char *) strchr( (char *) ecur, '\0' );
163 if ( e->e_dn != NULL ) {
165 tmplen = strlen( e->e_dn );
166 MAKE_SPACE( LDIF_SIZE_NEEDED( 2, tmplen ));
167 put_type_and_value( (char **) &ecur, "dn", e->e_dn, tmplen );
170 /* put the attributes */
171 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
172 /* put "<type>:[:] <value>" line for each value */
173 for ( i = 0; a->a_vals[i] != NULL; i++ ) {
175 tmplen = strlen( a->a_type );
176 MAKE_SPACE( LDIF_SIZE_NEEDED( tmplen, bv->bv_len ));
177 put_type_and_value( (char **) &ecur, a->a_type,
178 bv->bv_val, bv->bv_len );
185 return( (char *) ebuf );
189 entry_free( Entry *e )
194 /* XXX check that no reader/writer locks exist */
195 assert( !pthread_rdwr_wchk_np(&e->e_rdwr) &&
196 !pthread_rdwr_rchk_np(&e->e_rdwr) );
198 if ( e->e_dn != NULL ) {
201 for ( a = e->e_attrs; a != NULL; a = next ) {
209 entry_rdwr_lock(Entry *e, int rw)
211 Debug( LDAP_DEBUG_ARGS, "entry_rdwr_%slock: ID: %ld\n",
212 rw ? "w" : "r", e->e_id, 0);
214 return pthread_rdwr_wlock_np(&e->e_rdwr);
216 return pthread_rdwr_rlock_np(&e->e_rdwr);
220 entry_rdwr_rlock(Entry *e)
222 return entry_rdwr_lock( e, 0 );
226 entry_rdwr_wlock(Entry *e)
228 return entry_rdwr_lock( e, 1 );
232 entry_rdwr_unlock(Entry *e, int rw)
234 Debug( LDAP_DEBUG_ARGS, "entry_rdwr_%sunlock: ID: %ld\n",
235 rw ? "w" : "r", e->e_id, 0);
237 return pthread_rdwr_wunlock_np(&e->e_rdwr);
239 return pthread_rdwr_runlock_np(&e->e_rdwr);
243 entry_rdwr_runlock(Entry *e)
245 return entry_rdwr_unlock( e, 0 );
249 entry_rdwr_wunlock(Entry *e)
251 return entry_rdwr_unlock( e, 1 );
255 entry_rdwr_init(Entry *e)
257 return pthread_rdwr_init_np(&e->e_rdwr, NULL);