connect.c
2.79 KB
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
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010, 2011 Free Software Foundation, Inc.
This library 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 3 of the License, or (at your option) any later version.
This library 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 library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/select.h>
#include <sys/time.h>
#include <mailutils/errno.h>
#include <mailutils/imapio.h>
#include <mailutils/sys/imap.h>
#include <mailutils/sys/imapio.h>
int
mu_imap_connect (mu_imap_t imap)
{
int status;
size_t wc;
char **wv;
char *bufptr;
size_t bufsize;
if (imap == NULL)
return EINVAL;
if (imap->io == NULL)
return EINVAL;
_mu_imap_clrerrstr (imap);
status = _mu_imap_untagged_response_clear (imap);
if (status)
return status;
switch (imap->state)
{
default:
case MU_IMAP_NO_STATE:
status = mu_imap_disconnect (imap);
if (status != 0)
{
/* Sleep for 2 seconds (FIXME: Must be configurable) */
struct timeval tval;
tval.tv_sec = 2;
tval.tv_usec = 0;
select (0, NULL, NULL, NULL, &tval);
}
imap->state = MU_IMAP_CONNECT;
case MU_IMAP_CONNECT:
/* Establish the connection. */
if (!mu_stream_is_open (imap->io->_imap_stream))
{
status = mu_stream_open (imap->io->_imap_stream);
MU_IMAP_CHECK_EAGAIN (imap, status);
MU_IMAP_FCLR (imap, MU_IMAP_RESP);
}
imap->state = MU_IMAP_GREETINGS;
case MU_IMAP_GREETINGS:
status = mu_imapio_getline (imap->io);
MU_IMAP_CHECK_EAGAIN (imap, status);
mu_imapio_get_words (imap->io, &wc, &wv);
if (wc < 2 || strcmp (wv[0], "*"))
{
mu_imapio_getbuf (imap->io, &bufptr, &bufsize);
mu_error ("mu_imap_connect: invalid server response: %s",
bufptr);
imap->state = MU_IMAP_ERROR;
return MU_ERR_BADREPLY;
}
else
{
_mu_imap_untagged_response_add (imap);
mu_imap_foreach_response (imap, NULL, NULL);
switch (imap->state)
{
case MU_IMAP_CONNECTED:
status = 0;
break;
case MU_IMAP_CLOSING:
status = EACCES;
break;
default:
imap->state = MU_IMAP_ERROR;
status = MU_ERR_BADREPLY;
}
}
break;
}
return status;
}