don't yell at regex styling that wraps all the suffix in a submatch

diff --git a/servers/slapd/aclparse.c b/servers/slapd/aclparse.c
index 39e7f7831260db8e12c5bf461b49f8319dfb7b1c..d7a99c0351d55a7169bba68e7806d0ff09ffac51 100644 (file)
--- a/servers/slapd/aclparse.c
+++ b/servers/slapd/aclparse.c
@@ -187,12 +187,14 @@ check_scope( BackendDB *be, AccessControl *a )
                slap_style_t    style = a->acl_dn_style;
 
                if ( style == ACL_STYLE_REGEX ) {
-                       char    dnbuf[SLAP_LDAPDN_MAXLEN + 2];
-                       char    rebuf[SLAP_LDAPDN_MAXLEN + 1];
-                       regex_t re;
-                       int     rc;
+                       char            dnbuf[SLAP_LDAPDN_MAXLEN + 2];
+                       char            rebuf[SLAP_LDAPDN_MAXLEN + 1];
+                       ber_len_t       rebuflen;
+                       regex_t         re;
+                       int             rc;
                        
-                       /* add trailing '$' */
+                       /* add trailing '$' to database suffix to form
+                        * a simple trial regex pattern "<suffix>$" */
                        AC_MEMCPY( dnbuf, be->be_nsuffix[0].bv_val,
                                be->be_nsuffix[0].bv_len );
                        dnbuf[be->be_nsuffix[0].bv_len] = '$';
@@ -202,17 +204,26 @@ check_scope( BackendDB *be, AccessControl *a )
                                return ACL_SCOPE_WARN;
                        }
 
-                       /* remove trailing '$' */
-                       AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val,
-                               a->acl_dn_pat.bv_len + 1 );
-                       if ( a->acl_dn_pat.bv_val[a->acl_dn_pat.bv_len - 1] == '$' ) {
-                               rebuf[a->acl_dn_pat.bv_len - 1] = '\0';
+                       /* remove trailing ')$', if any, from original
+                        * regex pattern */
+                       rebuflen = a->acl_dn_pat.bv_len;
+                       AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val, rebuflen + 1 );
+                       if ( rebuf[rebuflen - 1] == '$' ) {
+                               rebuf[--rebuflen] = '\0';
+                       }
+                       while ( rebuflen > be->be_nsuffix[0].bv_len && rebuf[rebuflen - 1] == ')' ) {
+                               rebuf[--rebuflen] = '\0';
+                       }
+                       if ( rebuflen == be->be_nsuffix[0].bv_len ) {
+                               rc = ACL_SCOPE_WARN;
+                               goto regex_done;
                        }
 
                        /* not a clear indication of scoping error, though */
                        rc = regexec( &re, rebuf, 0, NULL, 0 )
                                ? ACL_SCOPE_WARN : ACL_SCOPE_OK;
 
+regex_done:;
                        regfree( &re );
                        return rc;
                }
@@ -226,8 +237,8 @@ check_scope( BackendDB *be, AccessControl *a )
                        /* base is blatantly wrong */
                        if ( style == ACL_STYLE_BASE ) return ACL_SCOPE_ERR;
 
-                       /* one can be wrong if there is more
-                        * than one level between the suffix
+                       /* a style of one can be wrong if there is
+                        * more than one level between the suffix
                         * and the pattern */
                        if ( style == ACL_STYLE_ONE ) {
                                int     rdnlen = -1, sep = 0;
@@ -1643,6 +1654,14 @@ parse_acl(
 
                if ( be != NULL ) {
 #ifdef LDAP_DEVEL
+                       if ( !BER_BVISNULL( &be->be_nsuffix[ 1 ] ) ) {
+                               fprintf( stderr, "%s: line %d: warning: "
+                                       "scope checking only applies to single-valued "
+                                       "suffix databases\n",
+                                       fname, lineno );
+                               /* go ahead, since checking is not authoritative */
+                       }
+
                        switch ( check_scope( be, a ) ) {
                        case ACL_SCOPE_UNKNOWN:
                                fprintf( stderr, "%s: line %d: warning: "