1 /* entry.c - routines for dealing with entries */
9 #include <sys/socket.h>
15 static unsigned char *ebuf; /* buf returned by entry2str */
16 static unsigned char *ecur; /* pointer to end of currently used ebuf */
17 static int emaxsize;/* max size of ebuf */
28 int vlen, nvals, maxvals;
30 struct berval *vals[2];
34 * In string format, an entry looks like this:
38 * [<attr>:[:] <value>\n]
39 * [<tab><continuedvalue>\n]*
42 * If a double colon is used after a type, it means the
43 * following value is encoded as a base 64 string. This
44 * happens if the value contains a non-printing character
48 Debug( LDAP_DEBUG_TRACE, "=> str2entry\n",
49 s ? s : "NULL", 0, 0 );
51 e = (Entry *) ch_calloc( 1, sizeof(Entry) );
52 /* initialize reader/writer lock */
55 /* check to see if there's an id included */
57 if ( isdigit( *s ) ) {
59 if ( (s = str_getline( &next )) == NULL ) {
60 Debug( LDAP_DEBUG_TRACE,
61 "<= str2entry NULL (missing newline after id)\n",
72 while ( (s = str_getline( &next )) != NULL ) {
73 if ( *s == '\n' || *s == '\0' ) {
77 if ( str_parse_line( s, &type, &value, &vlen ) != 0 ) {
78 Debug( LDAP_DEBUG_TRACE,
79 "<= str2entry NULL (parse_line)\n", 0, 0, 0 );
83 if ( strcasecmp( type, ptype ) != 0 ) {
84 strncpy( ptype, type, sizeof(ptype) - 1 );
89 if ( strcasecmp( type, "dn" ) == 0 ) {
90 if ( e->e_dn != NULL ) {
91 Debug( LDAP_DEBUG_ANY,
92 "str2entry: entry %d has multiple dns \"%s\" and \"%s\" (second ignored)\n",
93 e->e_id, e->e_dn, value );
96 e->e_dn = strdup( value );
102 if ( attr_merge_fast( e, type, vals, nvals, 1, &maxvals, &a )
104 Debug( LDAP_DEBUG_TRACE,
105 "<= str2entry NULL (attr_merge)\n", 0, 0, 0 );
111 /* check to make sure there was a dn: line */
112 if ( e->e_dn == NULL ) {
113 Debug( LDAP_DEBUG_ANY, "str2entry: entry %d has no dn\n",
119 Debug( LDAP_DEBUG_TRACE, "<= str2entry 0x%x\n", e, 0, 0 );
124 #define GRABSIZE BUFSIZ
126 #define MAKE_SPACE( n ) { \
127 while ( ecur + (n) > ebuf + emaxsize ) { \
129 offset = (int) (ecur - ebuf); \
130 ebuf = (unsigned char *) ch_realloc( (char *) ebuf, \
131 emaxsize + GRABSIZE ); \
132 emaxsize += GRABSIZE; \
133 ecur = ebuf + offset; \
149 * In string format, an entry looks like this:
152 * [<attr>: <value>\n]*
160 sprintf( (char *) ecur, "%ld\n", e->e_id );
161 ecur = (unsigned char *) strchr( (char *) ecur, '\0' );
165 if ( e->e_dn != NULL ) {
167 tmplen = strlen( e->e_dn );
168 MAKE_SPACE( LDIF_SIZE_NEEDED( 2, tmplen ));
169 put_type_and_value( (char **) &ecur, "dn", e->e_dn, tmplen );
172 /* put the attributes */
173 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
174 /* put "<type>:[:] <value>" line for each value */
175 for ( i = 0; a->a_vals[i] != NULL; i++ ) {
177 tmplen = strlen( a->a_type );
178 MAKE_SPACE( LDIF_SIZE_NEEDED( tmplen, bv->bv_len ));
179 put_type_and_value( (char **) &ecur, a->a_type,
180 bv->bv_val, bv->bv_len );
187 return( (char *) ebuf );
191 entry_free( Entry *e )
196 /* XXX check that no reader/writer locks exist */
197 assert( !pthread_rdwr_wchk_np(&e->e_rdwr) &&
198 !pthread_rdwr_rchk_np(&e->e_rdwr) );
200 if ( e->e_dn != NULL ) {
203 for ( a = e->e_attrs; a != NULL; a = next ) {
211 entry_rdwr_lock(Entry *e, int rw)
213 Debug( LDAP_DEBUG_ARGS, "entry_rdwr_%slock: ID: %ld\n",
214 rw ? "w" : "r", e->e_id, 0);
216 return pthread_rdwr_wlock_np(&e->e_rdwr);
218 return pthread_rdwr_rlock_np(&e->e_rdwr);
222 entry_rdwr_rlock(Entry *e)
224 return entry_rdwr_lock( e, 0 );
228 entry_rdwr_wlock(Entry *e)
230 return entry_rdwr_lock( e, 1 );
234 entry_rdwr_unlock(Entry *e, int rw)
236 Debug( LDAP_DEBUG_ARGS, "entry_rdwr_%sunlock: ID: %ld\n",
237 rw ? "w" : "r", e->e_id, 0);
239 return pthread_rdwr_wunlock_np(&e->e_rdwr);
241 return pthread_rdwr_runlock_np(&e->e_rdwr);
245 entry_rdwr_runlock(Entry *e)
247 return entry_rdwr_unlock( e, 0 );
251 entry_rdwr_wunlock(Entry *e)
253 return entry_rdwr_unlock( e, 1 );
257 entry_rdwr_init(Entry *e)
259 return pthread_rdwr_init_np(&e->e_rdwr, NULL);