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1 | /* |
2 | ** Copyright 1998 - 2005 Double Precision, Inc. See COPYING for |
3 | ** distribution information. |
4 | */ |
5 | |
6 | #include "auth.h" |
7 | #include "courierauthdebug.h" |
8 | #include <stdio.h> |
9 | #include <string.h> |
10 | #include <stdlib.h> |
11 | #include <ctype.h> |
12 | #include <errno.h> |
13 | |
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14 | |
15 | extern int auth_generic(const char *service, |
16 | const char *authtype, |
17 | char *authdata, |
18 | int (*callback_func)(struct authinfo *, void *), |
19 | void *callback_arg); |
20 | |
21 | static int badstr(const char *p) |
22 | { |
23 | while (p && *p) |
24 | { |
25 | if ((int)(unsigned char)*p < ' ') |
26 | return 1; |
27 | ++p; |
28 | } |
29 | return 0; |
30 | } |
31 | |
32 | /* Create a new string consisting of: |
33 | ** - username |
34 | ** - DEFDOMAIN if username does not contain any characters from DOMAINSEP |
35 | ** (or if DOMAINSEP not set, then if username does not contain |
36 | ** the first char of DEFDOMAIN) |
37 | ** - strings s1, s2, s3 |
38 | */ |
39 | |
40 | char *strdupdefdomain(const char *userid, const char *s1, const char *s2, |
41 | const char *s3) |
42 | { |
43 | char *p, *q, *r; |
44 | |
45 | q=getenv("DEFDOMAIN"); |
46 | if (q && q[0]) |
47 | { |
48 | r=getenv("DOMAINSEP"); |
49 | if (r ? strpbrk(userid, r) : strchr(userid, q[0])) q = ""; |
50 | } |
51 | else |
52 | q = ""; |
53 | |
54 | p=malloc(strlen(userid)+strlen(q)+strlen(s1)+strlen(s2)+strlen(s3)+1); |
55 | if (p) |
56 | strcat(strcat(strcat(strcat(strcpy(p, userid), q), s1), s2), s3); |
57 | return p; |
58 | } |
59 | |
60 | int auth_login(const char *service, |
61 | const char *userid, |
62 | const char *passwd, |
63 | int (*callback_func)(struct authinfo *, void *), |
64 | void *callback_arg) |
65 | |
66 | { |
67 | char *p; |
68 | int rc; |
69 | |
70 | if (badstr(userid) || badstr(passwd)) |
71 | { |
72 | errno=EINVAL; |
73 | return -1; |
74 | } |
75 | |
76 | courier_authdebug_login_init(); |
77 | courier_authdebug_login( 1, "username=%s", userid ); |
78 | courier_authdebug_login( 2, "password=%s", passwd ); |
79 | |
80 | p = strdupdefdomain(userid, "\n", passwd, "\n"); |
81 | if (!p) |
82 | return (-1); |
83 | |
84 | rc=auth_generic(service, AUTHTYPE_LOGIN, p, |
85 | callback_func, |
86 | callback_arg); |
87 | free(p); |
88 | return rc; |
89 | } |