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
|
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2004 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 2 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, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <mailutils/sys/nntp.h>
static int mu_nntp_parse_group(mu_nntp_t nntp, int code, unsigned long *ptotal, unsigned long *plow, unsigned long *phigh, char **name);
int
mu_nntp_group (mu_nntp_t nntp, const char *group, unsigned long *total, unsigned long *low, unsigned long *high, char **name)
{
int status;
if (nntp == NULL)
return EINVAL;
if (group == NULL || *group == '\0')
return MU_ERR_OUT_PTR_NULL;
switch (nntp->state)
{
case MU_NNTP_NO_STATE:
status = mu_nntp_writeline (nntp, "GROUP %s\r\n", group);
MU_NNTP_CHECK_ERROR (nntp, status);
mu_nntp_debug_cmd (nntp);
nntp->state = MU_NNTP_GROUP;
case MU_NNTP_GROUP:
status = mu_nntp_send (nntp);
MU_NNTP_CHECK_EAGAIN (nntp, status);
nntp->acknowledge = 0;
nntp->state = MU_NNTP_GROUP_ACK;
case MU_NNTP_GROUP_ACK:
status = mu_nntp_response (nntp, NULL, 0, NULL);
MU_NNTP_CHECK_EAGAIN (nntp, status);
mu_nntp_debug_ack (nntp);
MU_NNTP_CHECK_CODE (nntp, MU_NNTP_RESP_CODE_GROUP_SELECTED);
nntp->state = MU_NNTP_NO_STATE;
/* parse group. */
status = mu_nntp_parse_group (nntp, MU_NNTP_RESP_CODE_GROUP_SELECTED, total, low, high, name);
MU_NNTP_CHECK_ERROR (nntp, status);
break;
/* They must deal with the error first by reopening. */
case MU_NNTP_ERROR:
status = ECANCELED;
break;
default:
status = EINPROGRESS;
}
return status;
}
static int
mu_nntp_parse_group(mu_nntp_t nntp, int code, unsigned long *ptotal, unsigned long *plow, unsigned long *phigh, char **name)
{
unsigned long dummy = 0;
char *buf;
char format[24];
if (ptotal == NULL)
ptotal = &dummy;
if (plow == NULL)
plow = &dummy;
if (phigh == NULL)
phigh = &dummy;
/* An nntp response is not longer then 512. */
buf = calloc(1, 512);
if (buf == NULL)
{
return ENOMEM;
}
sprintf (format, "%d %%d %%d %%d %%%ds", code, 511);
sscanf (nntp->ack.buf, format, ptotal, plow, phigh, buf);
if (name)
{
*name = buf;
}
else
{
free (buf);
}
return 0;
}
|
