pop3_uidl.c
2.69 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
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Mailutils 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with GNU Mailutils; 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_STRING_H
# include <string.h>
#else
# include <strings.h>
#endif
#include <stdlib.h>
#include <mailutils/sys/pop3.h>
int
pop3_uidl (pop3_t pop3, unsigned msgno, char **uidl)
{
int status;
if (pop3 == NULL || uidl == NULL)
return MU_ERROR_INVALID_PARAMETER;
switch (pop3->state)
{
case POP3_NO_STATE:
status = pop3_writeline (pop3, "UIDL %d\r\n", msgno);
POP3_CHECK_ERROR (pop3, status);
pop3_debug_cmd (pop3);
pop3->state = POP3_UIDL;
case POP3_UIDL:
status = pop3_send (pop3);
POP3_CHECK_EAGAIN (pop3, status);
pop3->acknowledge = 0;
pop3->state = POP3_UIDL_ACK;
case POP3_UIDL_ACK:
status = pop3_response (pop3, NULL, 0, NULL);
POP3_CHECK_EAGAIN (pop3, status);
pop3_debug_ack (pop3);
POP3_CHECK_OK (pop3);
pop3->state = POP3_NO_STATE;
*uidl = NULL;
{
char *space;
/* Format: +OK msgno uidlstring */
/* Pass the "+OK". */
space = strchr (pop3->ack.buf, ' ');
if (space)
{
/* Skip spaces. */
while (*space == ' ') space++;
/* Pass the number. */
space = strchr (space, ' ');
if (space)
{
size_t len;
/* Skip spaces between msgno and uidlstring */
while (*space == ' ') space++;
len = strlen (space);
if (space[len - 1] == '\n')
{
space[len - 1] = '\0';
len--;
}
*uidl = calloc (len + 1, 1);
if (*uidl)
memcpy (*uidl, space, len);
}
}
}
if (*uidl == NULL) /* What can we do? */
{
*uidl = malloc (1);
if (*uidl)
**uidl = '\0';
else
status = MU_ERROR_NO_MEMORY;
}
break;
/* They must deal with the error first by reopening. */
case POP3_ERROR:
status = MU_ERROR_OPERATION_CANCELED;
break;
default:
status = MU_ERROR_OPERATION_IN_PROGRESS;
}
return status;
}