iPXE
netbios.c
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1 /*
2  * Copyright (C) 2018 Michael Brown <mbrown@fensystems.co.uk>.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  *
19  * You can also choose to distribute this program under the terms of
20  * the Unmodified Binary Distribution Licence (as given in the file
21  * COPYING.UBDL), provided that you have satisfied its requirements.
22  */
23 
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25 
26 /** @file
27  *
28  * NetBIOS user names
29  *
30  */
31 
32 #include <stddef.h>
33 #include <string.h>
34 #include <ipxe/netbios.h>
35 
36 /**
37  * Split NetBIOS [domain\]username into separate domain and username fields
38  *
39  * @v username NetBIOS [domain\]username string
40  * @ret domain Domain portion of string, or NULL if no domain present
41  *
42  * This function modifies the original string by removing the
43  * separator. The caller may restore the string using
44  * netbios_domain_undo().
45  */
46 const char * netbios_domain ( char **username ) {
47  char *domain_username = *username;
48  char *sep;
49 
50  /* Find separator, if present */
51  sep = strchr ( domain_username, '\\' );
52  if ( ! sep )
53  return NULL;
54 
55  /* Overwrite separator with NUL terminator and update username string */
56  *sep = '\0';
57  *username = ( sep + 1 );
58 
59  return domain_username;
60 }
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
const char * netbios_domain(char **username)
Split NetBIOS [domain]username into separate domain and username fields.
Definition: netbios.c:46
char * strchr(const char *src, int character)
Find character within a string.
Definition: string.c:256
NetBIOS user names.
#define NULL
NULL pointer (VOID *)
Definition: Base.h:362
String functions.