diff options
Diffstat (limited to 'source3/libsmb/namequery.c')
| -rw-r--r-- | source3/libsmb/namequery.c | 47 |
1 files changed, 37 insertions, 10 deletions
diff --git a/source3/libsmb/namequery.c b/source3/libsmb/namequery.c index 82c8c8f93d..193731768f 100644 --- a/source3/libsmb/namequery.c +++ b/source3/libsmb/namequery.c @@ -272,16 +272,42 @@ struct in_addr *name_query(int fd,const char *name,int name_type, struct nmb_packet *nmb2 = &p2->packet.nmb; debug_nmb_packet(p2); + /* If we get a Negative Name Query Response from a WINS + * server, we should report it and give up. + */ if( 0 == nmb2->header.opcode /* A query response */ && !(bcast) /* from a WINS server */ - && 0x03 == nmb2->header.rcode /* Name doesn't exist */ + && nmb2->header.rcode /* Error returned */ ) { - /* If we get a Negative Name Query Response from a WINS - * server, we should give up. - */ - free_packet(p2); - return( NULL ); + + if( DEBUGLVL( 3 ) ) { + /* Only executed if DEBUGLEVEL >= 3 */ + dbgtext( "Negative name query response, rcode 0x%02x: ", + nmb2->header.rcode ); + switch( nmb2->header.rcode ) { + case 0x01: + dbgtext( "Request was invalidly formatted.\n" ); + break; + case 0x02: + dbgtext( "Problem with NBNS, cannot process name.\n"); + break; + case 0x03: + dbgtext( "The name requested does not exist.\n" ); + break; + case 0x04: + dbgtext( "Unsupported request error.\n" ); + break; + case 0x05: + dbgtext( "Refused error.\n" ); + break; + default: + dbgtext( "Unrecognized error code.\n" ); + break; + } } + free_packet(p2); + return( NULL ); + } if (nmb2->header.opcode != 0 || nmb2->header.nm_flags.bcast || @@ -295,17 +321,18 @@ struct in_addr *name_query(int fd,const char *name,int name_type, continue; } - ip_list = (struct in_addr *)Realloc(ip_list, sizeof(ip_list[0]) * - ((*count)+nmb2->answers->rdlength/6)); + ip_list = (struct in_addr *)Realloc( ip_list, + sizeof( ip_list[0] ) + * ( (*count) + nmb2->answers->rdlength/6 ) ); if (ip_list) { DEBUG(2,("Got a positive name query response from %s ( ", inet_ntoa(p2->ip))); for (i=0;i<nmb2->answers->rdlength/6;i++) { putip((char *)&ip_list[(*count)],&nmb2->answers->rdata[2+i*6]); - DEBUG(2,("%s ",inet_ntoa(ip_list[(*count)]))); + DEBUGADD(2,("%s ",inet_ntoa(ip_list[(*count)]))); (*count)++; } - DEBUG(2,(")\n")); + DEBUGADD(2,(")\n")); } found=True; |