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path: root/source3/lib/wins_srv.c
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2007-10-10Add start of IPv6 implementation. Currently most of this is avoidingJeremy Allison1-5/+5
IPv6 in winbindd, but moves most of the socket functions that were wrongly in lib/util.c into lib/util_sock.c and provides generic IPv4/6 independent versions of most things. Still lots of work to do, but now I can see how I'll fix the access check code. Nasty part that remains is the name resolution code which is used to returning arrays of in_addr structs. Jeremy. (This used to be commit 3f6bd0e1ec5cc6670f3d08f76fc2cd94c9cd1a08)
2007-10-10r23784: use the GPLv3 boilerplate as recommended by the FSF and the license textAndrew Tridgell1-2/+1
(This used to be commit b0132e94fc5fef936aa766fb99a306b3628e9f07)
2007-10-10r23779: Change from v2 or later to v3 or later.Jeremy Allison1-1/+1
Jeremy. (This used to be commit 407e6e695b8366369b7c76af1ff76869b45347b3)
2007-10-10r13915: Fixed a very interesting class of realloc() bugs found by Coverity.Jeremy Allison1-0/+3
realloc can return NULL in one of two cases - (1) the realloc failed, (2) realloc succeeded but the new size requested was zero, in which case this is identical to a free() call. The error paths dealing with these two cases should be different, but mostly weren't. Secondly the standard idiom for dealing with realloc when you know the new size is non-zero is the following : tmp = realloc(p, size); if (!tmp) { SAFE_FREE(p); return error; } else { p = tmp; } However, there were *many* *many* places in Samba where we were using the old (broken) idiom of : p = realloc(p, size) if (!p) { return error; } which will leak the memory pointed to by p on realloc fail. This commit (hopefully) fixes all these cases by moving to a standard idiom of : p = SMB_REALLOC(p, size) if (!p) { return error; } Where if the realloc returns null due to the realloc failing or size == 0 we *guarentee* that the storage pointed to by p has been freed. This allows me to remove a lot of code that was dealing with the standard (more verbose) method that required a tmp pointer. This is almost always what you want. When a realloc fails you never usually want the old memory, you want to free it and get into your error processing asap. For the 11 remaining cases where we really do need to keep the old pointer I have invented the new macro SMB_REALLOC_KEEP_OLD_ON_ERROR, which can be used as follows : tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size); if (!tmp) { SAFE_FREE(p); return error; } else { p = tmp; } SMB_REALLOC_KEEP_OLD_ON_ERROR guarentees never to free the pointer p, even on size == 0 or realloc fail. All this is done by a hidden extra argument to Realloc(), BOOL free_old_on_error which is set appropriately by the SMB_REALLOC and SMB_REALLOC_KEEP_OLD_ON_ERROR macros (and their array counterparts). It remains to be seen what this will do to our Coverity bug count :-). Jeremy. (This used to be commit 1d710d06a214f3f1740e80e0bffd6aab44aac2b0)
2007-10-10r6225: get rid of warnings from my compiler about nested externsHerb Lewis1-1/+2
(This used to be commit efea76ac71412f8622cd233912309e91b9ea52da)
2007-10-10r4088: Get medieval on our ass about malloc.... :-). Take control of all our ↵Jeremy Allison1-6/+6
allocation functions so we can funnel through some well known functions. Should help greatly with malloc checking. HEAD patch to follow. Jeremy. (This used to be commit 620f2e608f70ba92f032720c031283d295c5c06a)
2003-06-25large change:Gerald Carter1-5/+15
*) consolidates the dc location routines again (dns and netbios) get_dc_list() or get_sorted_dc_list() is the authoritative means of locating DC's again. (also inludes a flag to get_dc_list() to define if this should be a DNS only lookup or not) (however, if you set "name resolve order = hosts wins" you could still get DNS queries for domain name IFF ldap_domain2hostlist() fails. The answer? Fix your DNS setup) *) enabled DOMAIN<0x1c> lookups to be funneled through resolve_hosts resulting in a call to ldap_domain2hostlist() if lp_security() == SEC_ADS *) enables name cache for winbind ADS backend *) enable the negative connection cache for winbind ADS backend *) removes some old dead code *) consolidates some duplicate code *) moves the internal_name_resolve() to use an IP/port pair to deal with SRV RR dns replies. The namecache code also supports the IP:port syntax now as well. *) removes 'ads server' and moves the functionality back into 'password server' (which can support "hostname:port" syntax now but works fine with defaults depending on the value of lp_security()) (This used to be commit d7f7fcda425bef380441509734eca33da943c091)
2003-01-22Merge of wins server dead list into gencache.tdbTim Potter1-60/+54
(This used to be commit d1107efa1cd23cbfe8da6d3462714a6f3ec570ae)
2002-11-12Removed global_myworkgroup, global_myname, global_myscope. Added liberalJeremy Allison1-6/+8
dashes of const. This is a rather large check-in, some things may break. It does compile though :-). Jeremy. (This used to be commit f755711df8f74f9b8e8c1a2b0d07d02a931eeb89)
2002-08-17sync 3.0 branch with headJelmer Vernooij1-1/+1
(This used to be commit 3928578b52cfc949be5e0ef444fce1558d75f290)
2002-07-15updated the 3.0 branch from the head branch - ready for alpha18Andrew Tridgell1-318/+329
(This used to be commit 03ac082dcb375b6f3ca3d810a6a6367542bc23ce)
2002-01-30Removed version number from file header.Tim Potter1-2/+1
Changed "SMB/Netbios" to "SMB/CIFS" in file header. (This used to be commit 6a58c9bd06d0d7502a24bf5ce5a2faf0a146edfa)
2001-11-26Got medieval on another pointless extern. Removed extern struct ipzeroTim Potter1-3/+3
and replaced with two functions: void zero_ip(struct in_adder *ip); BOOL is_zero_ip(struct in_addr ip); (This used to be commit 778f5f77a66cda76348a7c6f64cd63afe2bfe077)
2001-09-17move to SAFE_FREE()Simo Sorce1-4/+3
(This used to be commit 60e907b7e8e1c008463a88ed2b076344278986ef)
2001-08-26Small changes to get ready for adding WINS failover to smbd and clients.Christopher R. Hertel1-5/+76
My plan is to change the lp_wins_server() function to lp_wins_server_list(). My reason being: With WINS failover the 'wins server' parameter may take a list of WINS server names/IPs instead of just one. If it's a list, then calling lp_wins_server() won't give you what you expect (that is, a single WINS server name or IP). Instead, the functions in wins_srv.c should be used. You can get either the name or IP of the 'current' working WINS server in the list. Chris -)----- (This used to be commit efaa9ef5e72c3748d97e43bba38a0ba47ff3438d)
2000-10-11Fixed %d printf with unsigned long arg.Jeremy Allison1-1/+1
Jeremy. (This used to be commit 448ff58fd5a88b1fdadfb9a8e0bc5f38b707a4d3)
2000-07-19Instead of handing back a string (which might be a DNS name or an IPChristopher R. Hertel1-33/+85
string), the wins_srv module now hands back a struct in_addr when it's called. It caches the IP address once it has been looked up. The IP is cleared (and must be looked up again) if the 'wins server' parameter is reread, or if the node is marked 'dead'. A dead node will not be re-tried for 10 minutes (per a #define in wins_srv.c). As it was, the code was reading the WINS server name or IP directly from lp_wins_server. That's okay, except that if the value was expressed as a name, then a DNS lookup would be done every time the client wanted to talk to the server. I still need to work out the implications of failover regarding the 'unicast subnet' list. Chris -)----- (This used to be commit 73aa188320fd3bf10b5dfc057323f40aff2c13bd)
2000-07-19First cut toward adding WINS server failover.Christopher R. Hertel1-0/+218
*Note: failover doesn't actually work yet!* It's just that the code I'm adding provides all of the pieces necessary. I do have one big question. Something that I'll have to ask Jeremy, I'm thinkin'. In nmbd/nmbd_subnetdb.c the IP of the WINS server is used to set up the Unicast subnet. ...so what happens if the WINS server changes? My guess is either: a) nothing. b) I'd have to change the unicast subnet entry whenever the WINS server changes. Urq. BTW, the lp_wins_server() function no longer returns the WINS server name or IP. It returns the list of WINS servers entered in smb.conf. To get the currently 'live' WINS server, use the wins_srv() function. Fun, eh? Chris -)----- (This used to be commit cc08bdc74f4cd111fdc582ee7babef47ed8a950d)