[Samba] Wbinfo -Y couldn't work with idmap_rid for BUILTIN groups

[Li, Ying (ESG)]

Here is a patch for BUILTIN group sid/gid mapping in idmap_rid. It works
to me.

#>cd samba-3.0.14a/source/sam
#>diff -C3 idmap_rid.c idmap_rid.c_new
*** idmap_rid.c Fri Mar 11 05:47:05 2005
--- idmap_rid.c_new     Mon Aug 29 15:42:50 2005
***************
*** 459,466 ****
        fstring sid_string;
        int i;
        uint32 rid;
!       DOM_SID sidstr;

        /* check if we have a mapping for the sid */
        for (i=0; i<trust.number; i++) {
                if (!trust.dom[i].sid) {
--- 459,470 ----
        fstring sid_string;
        int i;
        uint32 rid;
!       DOM_SID sidstr, sidbuiltin;

+       string_to_sid(&sidbuiltin, "S-1-5-32");
+       if ( sid_compare_domain(sid, &sidbuiltin) == 0 ) {
+               i=0;
+       } else {
        /* check if we have a mapping for the sid */
        for (i=0; i<trust.number; i++) {
                if (!trust.dom[i].sid) {
***************
*** 469,474 ****
--- 473,479 ----
                string_to_sid(&sidstr, trust.dom[i].sid);
                if ( sid_compare_domain(sid, &sidstr) == 0 )
                        break;
+       }
        }