1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
** Copyright 2000-2008 Double Precision, Inc. See COPYING for
** distribution information.
*/
#include "auth.h"
#include "authstaticlist.h"
#include "courierauthsasl.h"
#include "authwait.h"
#include "courierauthdebug.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/select.h>
#include "numlib/numlib.h"
static const char rcsid[]="$Id: authdaemon.c,v 1.18 2008/06/29 16:39:24 mrsam Exp $";
extern int authdaemondo(const char *authreq,
int (*func)(struct authinfo *, void *), void *arg);
extern void auth_daemon_enumerate( void(*cb_func)(const char *name,
uid_t uid,
gid_t gid,
const char *homedir,
const char *maildir,
const char *options,
void *void_arg),
void *void_arg);
int auth_generic(const char *service,
const char *authtype,
char *authdata,
int (*callback_func)(struct authinfo *, void *),
void *callback_arg)
{
char tbuf[NUMBUFSIZE];
size_t l=strlen(service)+strlen(authtype)+strlen(authdata)+2;
char *n=libmail_str_size_t(l, tbuf);
char *buf=malloc(strlen(n)+l+20);
int rc;
courier_authdebug_login_init();
if (!buf)
return 1;
strcat(strcat(strcpy(buf, "AUTH "), n), "\n");
strcat(strcat(buf, service), "\n");
strcat(strcat(buf, authtype), "\n");
strcat(buf, authdata);
rc=strcmp(authtype, "EXTERNAL") == 0
? auth_getuserinfo(service, authdata, callback_func,
callback_arg)
: authdaemondo(buf, callback_func, callback_arg);
free(buf);
if (courier_authdebug_login_level)
{
struct timeval t;
/* short delay to try and allow authdaemond's courierlogger
to finish writing; otherwise items can appear out of order */
t.tv_sec = 0;
t.tv_usec = 100000;
select(0, 0, 0, 0, &t);
}
return rc;
}
int auth_callback_default(struct authinfo *ainfo)
{
if (ainfo->address == NULL)
{
fprintf(stderr, "WARN: No address!!\n");
return (-1);
}
if (ainfo->sysusername)
libmail_changeusername(ainfo->sysusername,
&ainfo->sysgroupid);
else if (ainfo->sysuserid)
libmail_changeuidgid(*ainfo->sysuserid,
ainfo->sysgroupid);
else
{
fprintf(stderr, "WARN: %s: No UID/GID!!\n", ainfo->address);
return (-1);
}
if (!ainfo->homedir)
{
errno=EINVAL;
fprintf(stderr, "WARN: %s: No homedir!!\n", ainfo->address);
return (1);
}
if (chdir(ainfo->homedir))
{
fprintf(stderr, "WARN: %s: chdir(%s) failed!!\n",
ainfo->address, ainfo->homedir);
perror("WARN: error");
return (1);
}
return 0;
}
|
