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path: root/source3/nmbd/asyncdns.c
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1997-10-23Big change to make nmbd code more readable/understandable.Jeremy Allison1-16/+16
Main change is removal of find_name_search() confusion. This has been replaced with find_name_on_subnet() which makes it explicit what is being searched. Also changed wins_subnet to be wins_client_subnet in preparation for splitting the wins subnet into client and server pieces. This is a big nmbd change and I'd appreciate any bug reports. Specific changes follow : asyncdns.c: Removed wins entry from add_netbios_entry(). This is now explicit in the subnet_record parameter. interface.c: iface_bcast(), iface_nmask(), iface_ip() return the default interface if none can be found. Made this behavior explicit - some code in nmbd incorrectly depended upon this (reply_name_status() for instance). nameannounce.c: find_name_search changes to find_name_on_subnet. namebrowse.c: wins_subnet renamed to wins_client_subnet. namedbname.c: find_name_search removed. find_name_on_subnet added. add_netbios_entry - wins parameter removed. namedbsubnet.c: find_req_subnet removed - not explicit enough. nameelect.c: wins_subnet renamed to wins_client_subnet. namepacket.c: listening() simplified. nameresp.c: wins_subnet renamed to wins_client_subnet. nameserv.c: find_name_search moved to find_name_on_subnet. nameserv.h: FIND_XXX -> changed to FIND_SELF_NAME, FIND_ANY_NAME. nameservreply.c: find_name_search moved to find_name_on_subnet. Debug entries changed. nameservresp.c: wins_subnet renamed to wins_client_subnet. namework.c: wins_subnet renamed to wins_client_subnet. nmbd.c: wins parameter removed from add_netbios_entry. nmbsync: wins_subnet renamed to wins_client_subnet. proto.h: The usual. server.c: remove accepted fd from fd_set. Jeremy (jallison@whistle.com) (This used to be commit 2c97b33fc0b5ef181dbf51a50cb61074935165bf)
1997-10-22Implemented asynchronous DNS lookups in nmbd.Andrew Tridgell1-0/+257
I realised this afternoon just how easy it is to add this, so I thought I'd implement it while the idea was fresh. nmbd forks at startup and uses a pipe to talk to its child. The child does the DNS lookups and the file descriptor of the child is added to the main select loop. While I was doing this I discovered a bug in nmbd that explains why the dns proxy option has been so expensive. The DNS cache entries in the WINS list were never being checked, which means we always did a DNS lookup even if we have done it before and it is in cache. I'm sure this used to work (I tested the DNS cache when I added it) so someone broke it :-( Anyway, the async DNS gets rid of the problem completely. I'll commit just the fix to the DNS cache bug to the 1.9.17 tree. You can disable async DNS by adding -DSYNC_DNS to the compile flags. (This used to be commit 178e27de0791c1ff3268cb456ed5c5efc9ac2a01)