1 /*
2 ** Copyright 1998 - 2004 Double Precision, Inc. See COPYING for
3 ** distribution information.
4 */
5
6 #if HAVE_CONFIG_H
7 #include "courier_auth_config.h"
8 #endif
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <string.h>
12 #include <errno.h>
13 #include <pwd.h>
14 #if HAVE_UNISTD_H
15 #include <unistd.h>
16 #endif
17
18 #include "auth.h"
19 #include "courierauthstaticlist.h"
20 #include "courierauthdebug.h"
21
22
23
24 struct callback_info {
25 const char *pass;
26 int (*callback_func)(struct authinfo *, void *);
27 void *callback_arg;
28 };
29
check_pw(struct authinfo * a,void * v)30 static int check_pw(struct authinfo *a, void *v)
31 {
32 struct callback_info *ci=(struct callback_info *)v;
33 int rc;
34
35 if (a->passwd == NULL)
36 {
37 DPRINTF("no password available to compare");
38 errno=EPERM;
39 return (-1);
40 }
41
42 if (authcheckpassword(ci->pass, a->passwd))
43 {
44 errno=EPERM;
45 return (-1);
46 }
47 a->clearpasswd=ci->pass;
48 rc=(*ci->callback_func)(a, ci->callback_arg);
49 a->clearpasswd=NULL;
50 return rc;
51 }
52
auth_sys_common(int (* auth_pre_func)(const char *,const char *,int (*)(struct authinfo *,void *),void *),const char * user,const char * pass,const char * service,int (* callback_func)(struct authinfo *,void *),void * callback_arg)53 int auth_sys_common( int (*auth_pre_func)(const char *,
54 const char *,
55 int (*)(struct authinfo *,
56 void *),
57 void *),
58 const char *user,
59 const char *pass,
60 const char *service,
61 int (*callback_func)(struct authinfo *, void *),
62 void *callback_arg)
63 {
64 struct callback_info ci;
65
66 ci.pass=pass;
67 ci.callback_func=callback_func;
68 ci.callback_arg=callback_arg;
69 return (*auth_pre_func)(user, service, check_pw, &ci);
70 }
71
72