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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" |
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19 | #include "courierauthstaticlist.h" |
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20 | #include "courierauthdebug.h" |
21 | |
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22 | |
23 | |
24 | struct callback_info { |
25 | const char *pass; |
26 | int (*callback_func)(struct authinfo *, void *); |
27 | void *callback_arg; |
28 | }; |
29 | |
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 | |
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 | |