lib/util: Standardize use of st_[acm]time ns
[samba.git] / source3 / lib / util_names.c
1 /*
2    Unix SMB/CIFS implementation.
3    Samba utility functions
4    Copyright (C) Andrew Tridgell 1992-1998
5    Copyright (C) Jeremy Allison 2001-2007
6    Copyright (C) Simo Sorce 2001
7    Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8    Copyright (C) James Peach 2006
9    Copyright (C) Andrew Bartlett 2010-2011
10
11    This program is free software; you can redistribute it and/or modify
12    it under the terms of the GNU General Public License as published by
13    the Free Software Foundation; either version 3 of the License, or
14    (at your option) any later version.
15
16    This program is distributed in the hope that it will be useful,
17    but WITHOUT ANY WARRANTY; without even the implied warranty of
18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19    GNU General Public License for more details.
20
21    You should have received a copy of the GNU General Public License
22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "includes.h"
26
27 /***********************************************************************
28  Definitions for all names.
29 ***********************************************************************/
30
31 static int smb_num_netbios_names;
32 static char **smb_my_netbios_names;
33
34 static void free_netbios_names_array(void)
35 {
36         int i;
37
38         for (i = 0; i < smb_num_netbios_names; i++)
39                 SAFE_FREE(smb_my_netbios_names[i]);
40
41         SAFE_FREE(smb_my_netbios_names);
42         smb_num_netbios_names = 0;
43 }
44
45 static bool allocate_my_netbios_names_array(size_t number)
46 {
47         free_netbios_names_array();
48
49         smb_num_netbios_names = number + 1;
50         smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
51
52         if (!smb_my_netbios_names)
53                 return False;
54
55         memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
56         return True;
57 }
58
59 static bool set_my_netbios_names(const char *name, int i)
60 {
61         SAFE_FREE(smb_my_netbios_names[i]);
62
63         /*
64          * Don't include space for terminating '\0' in strndup,
65          * it is automatically added. This screws up if the name
66          * is greater than MAX_NETBIOSNAME_LEN-1 in the unix
67          * charset, but less than or equal to MAX_NETBIOSNAME_LEN-1
68          * in the DOS charset, but this is so old we have to live
69          * with that.
70          */
71         smb_my_netbios_names[i] = SMB_STRNDUP(name, MAX_NETBIOSNAME_LEN-1);
72         if (!smb_my_netbios_names[i])
73                 return False;
74         return strupper_m(smb_my_netbios_names[i]);
75 }
76
77 /***********************************************************************
78  Free memory allocated to global objects
79 ***********************************************************************/
80
81 void gfree_names(void)
82 {
83         free_netbios_names_array();
84 }
85
86 const char *my_netbios_names(int i)
87 {
88         return smb_my_netbios_names[i];
89 }
90
91 bool set_netbios_aliases(const char **str_array)
92 {
93         size_t namecount;
94
95         /* Work out the max number of netbios aliases that we have */
96         for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
97                 ;
98
99         if ( lp_netbios_name() && *lp_netbios_name())
100                 namecount++;
101
102         /* Allocate space for the netbios aliases */
103         if (!allocate_my_netbios_names_array(namecount))
104                 return False;
105
106         /* Use the global_myname string first */
107         namecount=0;
108         if ( lp_netbios_name() && *lp_netbios_name()) {
109                 set_my_netbios_names( lp_netbios_name(), namecount );
110                 namecount++;
111         }
112
113         if (str_array) {
114                 size_t i;
115                 for ( i = 0; str_array[i] != NULL; i++) {
116                         size_t n;
117                         bool duplicate = False;
118
119                         /* Look for duplicates */
120                         for( n=0; n<namecount; n++ ) {
121                                 if( strequal( str_array[i], my_netbios_names(n) ) ) {
122                                         duplicate = True;
123                                         break;
124                                 }
125                         }
126                         if (!duplicate) {
127                                 if (!set_my_netbios_names(str_array[i], namecount))
128                                         return False;
129                                 namecount++;
130                         }
131                 }
132         }
133         return True;
134 }
135
136 /****************************************************************************
137   Common name initialization code.
138 ****************************************************************************/
139
140 bool init_names(void)
141 {
142         int n;
143
144         if (!set_netbios_aliases(lp_netbios_aliases())) {
145                 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
146                 return False;
147         }
148
149         DEBUG( 5, ("Netbios name list:-\n") );
150         for( n=0; my_netbios_names(n); n++ ) {
151                 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
152                                         n, my_netbios_names(n) ) );
153         }
154
155         return( True );
156 }
157
158 /******************************************************************
159  get the default domain/netbios name to be used when dealing
160  with our passdb list of accounts
161 ******************************************************************/
162
163 const char *get_global_sam_name(void)
164 {
165         if (IS_DC) {
166                 return lp_workgroup();
167         }
168         return lp_netbios_name();
169 }
170
171
172 /******************************************************************
173  Get the default domain/netbios name to be used when
174  testing authentication.
175 ******************************************************************/
176
177 const char *my_sam_name(void)
178 {
179         if (lp_server_role() == ROLE_STANDALONE) {
180                 return lp_netbios_name();
181         }
182
183         return lp_workgroup();
184 }