2 Unix SMB/CIFS implementation.
5 Copyright (C) Jeremy Allison 1994-2003
6 Copyright (C) Jelmer Vernooij 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "system/filesys.h"
25 #include "lib/samba3/samba3.h"
26 #include "system/network.h"
28 #define WINS_VERSION 1
30 NTSTATUS samba3_read_winsdb( const char *fn, TALLOC_CTX *ctx, struct samba3_winsdb_entry **entries, uint32_t *count )
35 if((fp = x_fopen(fn,O_RDONLY,0)) == NULL) {
36 DEBUG(0,("initialise_wins: Can't open wins database file %s. Error was %s\n",
37 fn, strerror(errno) ));
38 return NT_STATUS_OPEN_FAILED;
45 struct samba3_winsdb_entry entry;
46 const char *name_str, *ttl_str, *nb_flags_str;
53 /* Read a line from the wins.dat file. Strips whitespace
54 from the beginning and end of the line. */
55 line = fgets_slash(NULL,8,fp);
57 return NT_STATUS_UNEXPECTED_IO_ERROR;
65 if (strncmp(line,"VERSION ", 8) == 0) {
66 if (sscanf(line,"VERSION %d %u", &version, &hash) != 2 ||
67 version != WINS_VERSION) {
68 DEBUG(0,("Discarding invalid wins.dat file [%s]\n",line));
71 return NT_STATUS_REVISION_MISMATCH;
78 args = str_list_make_shell(ctx, line, NULL);
81 * Now we handle multiple IP addresses per name we need
82 * to iterate over the line twice. The first time to
83 * determine how many IP addresses there are, the second
84 * time to actually parse them into the ip_list array.
89 DEBUG(0,("initialise_wins: Failed to parse name when parsing line %s\n", line ));
96 DEBUG(0,("initialise_wins: Failed to parse time to live when parsing line %s\n", line ));
102 * Determine the number of IP addresses per line.
105 for (i = 2; args[i] && strchr(args[i], '.'); i++) entry.ip_count++;
107 if(entry.ip_count == 0) {
108 DEBUG(0,("initialise_wins: Missing IP address when parsing line %s\n", line ));
113 /* Allocate the space for the ip_list. */
114 if((entry.ips = talloc_array ( ctx, struct in_addr, entry.ip_count)) == NULL) {
115 DEBUG(0,("initialise_wins: Malloc fail !\n"));
117 return NT_STATUS_NO_MEMORY;
120 /* Reset and re-parse the line. */
121 for(i = 0; i < entry.ip_count; i++) {
122 entry.ips[i] = interpret_addr2(args[i+2]);
124 nb_flags_str = args[2 + entry.ip_count];
126 SMB_ASSERT(nb_flags_str);
129 * Deal with SELF or REGISTER name encoding. Default is REGISTER
130 * for compatibility with old nmbds.
133 if(nb_flags_str[strlen(nb_flags_str)-1] == 'S') {
134 DEBUG(5,("initialise_wins: Ignoring SELF name %s\n", line));
135 talloc_free(entry.ips);
140 /* Netbios name. # divides the name from the type (hex): netbios#xx */
141 entry.name = talloc_strdup(ctx, name_str);
143 if((p = strchr(entry.name,'#')) != NULL) {
145 sscanf(p+1,"%x",&entry.type);
148 /* Decode the netbios flags (hex) and the time-to-live (in seconds). */
149 sscanf(nb_flags_str,"%x",&entry.nb_flags);
150 entry.ttl = atol(ttl_str);
152 *entries = talloc_realloc(ctx, *entries, struct samba3_winsdb_entry, (*count)+1);
153 (*entries)[*count] = entry;