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
|
/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_LIBLTDL
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sieve.h>
#include <ltdl.h>
typedef int (*sieve_module_init_t) __PMT((sieve_machine_t mach));
static void
_free_loaded_module (void *data)
{
lt_dlclose ((lt_dlhandle)data);
lt_dlexit ();
}
static lt_dlhandle
load_module (sieve_machine_t mach, const char *name)
{
lt_dlhandle handle;
if (lt_dlinit ())
return NULL;
handle = lt_dlopenext (name);
if (handle)
{
sieve_module_init_t init = (sieve_module_init_t)
lt_dlsym (handle, "init");
if (init)
{
init (mach);
sieve_machine_add_destructor (mach, _free_loaded_module, handle);
return handle;
}
else
{
lt_dlclose (handle);
handle = NULL;
}
}
if (!handle)
{
sieve_error (mach, "%s", lt_dlerror ());
lt_dlexit ();
}
return handle;
}
static void
fix_module_name (char *name)
{
for (; *name; name++)
{
if (isalnum (*name) || *name == '.' || *name == ',')
continue;
*name = '-';
}
}
int
sieve_load_ext (sieve_machine_t mach, const char *name)
{
lt_dlhandle handle;
char *modname;
modname = strdup (name);
if (!modname)
return 1;
fix_module_name (modname);
handle = load_module (mach, modname);
free (modname);
return handle == NULL;
}
#else
#include <sieve.h>
int
sieve_load_ext (sieve_machine_t mach, const char *name)
{
return 1;
}
#endif /* HAVE_LIBLTDL */
|
