2
Unix SMB/CIFS implementation.
4
Copyright (C) Andrew Tridgell 1992-1998
5
Copyright (C) Jeremy Allison 1997-2001.
6
Copyright (C) Volker Lendecke 2006
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 2 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, write to the Free Software
20
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25
/*******************************************************************
26
Map a username from a dos name to a unix name by looking in the username
27
map. Note that this modifies the name in place.
28
This is the main function that should be called *once* on
29
any incoming or new username - in order to canonicalize the name.
30
This is being done to de-couple the case conversions from the user mapping
31
function. Previously, the map_username was being called
32
every time Get_Pwnam was called.
33
Returns True if username was changed, false otherwise.
34
********************************************************************/
36
BOOL map_username(fstring user)
38
static BOOL initialised=False;
39
static fstring last_from,last_to;
41
char *mapfile = lp_username_map();
44
BOOL mapped_user = False;
45
char *cmd = lp_username_map_script();
50
if (strequal(user,last_to))
53
if (strequal(user,last_from)) {
54
DEBUG(3,("Mapped user %s to %s\n",user,last_to));
55
fstrcpy(user,last_to);
59
/* first try the username map script */
64
int numlines, ret, fd;
66
pstr_sprintf( command, "%s \"%s\"", cmd, user );
68
DEBUG(10,("Running [%s]\n", command));
69
ret = smbrun(command, &fd);
70
DEBUGADD(10,("returned [%d]\n", ret));
79
qlines = fd_lines_load(fd, &numlines,0);
80
DEBUGADD(10,("Lines returned = [%d]\n", numlines));
83
/* should be either no lines or a single line with the mapped username */
85
if (numlines && qlines) {
86
DEBUG(3,("Mapped user %s to %s\n", user, qlines[0] ));
87
fstrcpy( user, qlines[0] );
90
file_lines_free(qlines);
95
/* ok. let's try the mapfile */
101
*last_from = *last_to = 0;
105
f = x_fopen(mapfile,O_RDONLY, 0);
107
DEBUG(0,("can't open username map %s. Error %s\n",mapfile, strerror(errno) ));
111
DEBUG(4,("Scanning username map %s\n",mapfile));
113
while((s=fgets_slash(buf,sizeof(buf),f))!=NULL) {
115
char *dosname = strchr_m(unixname,'=');
117
BOOL return_if_mapped = False;
124
while (isspace((int)*unixname))
127
if ('!' == *unixname) {
128
return_if_mapped = True;
130
while (*unixname && isspace((int)*unixname))
134
if (!*unixname || strchr_m("#;",*unixname))
138
int l = strlen(unixname);
139
while (l && isspace((int)unixname[l-1])) {
145
/* skip lines like 'user = ' */
147
dosuserlist = str_list_make(dosname, NULL);
149
DEBUG(0,("Bad username map entry. Unable to build user list. Ignoring.\n"));
153
if (strchr_m(dosname,'*') ||
154
user_in_list(user, (const char **)dosuserlist)) {
155
DEBUG(3,("Mapped user %s to %s\n",user,unixname));
157
fstrcpy( last_from,user );
158
fstrcpy( user, unixname );
159
fstrcpy( last_to,user );
160
if ( return_if_mapped ) {
161
str_list_free (&dosuserlist);
167
str_list_free (&dosuserlist);
173
* Setup the last_from and last_to as an optimization so
174
* that we don't scan the file again for the same user.
176
fstrcpy(last_from,user);
177
fstrcpy(last_to,user);