qstring.c
2.06 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
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2011 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <string.h>
#include <mailutils/types.h>
#include <mailutils/imapio.h>
#include <mailutils/stream.h>
#include <mailutils/sys/imapio.h>
/* Send NIL if empty string, change the quoted string to a literal if the
string contains: double quotes, CR, LF, or \. */
int
mu_imapio_send_qstring_unfold (struct _mu_imapio *io, const char *buffer,
int unfold)
{
if (buffer == NULL || *buffer == '\0')
return mu_imapio_printf (io, "NIL");
if (strchr (buffer, '"') ||
strchr (buffer, '\r') ||
strchr (buffer, '\n') ||
strchr (buffer, '\\'))
{
if (unfold)
{
int rc;
size_t len = strlen (buffer);
rc = mu_stream_printf (io->_imap_stream,
"{%lu}\n", (unsigned long) strlen (buffer));
if (rc)
return rc;
for (;;)
{
size_t s = strcspn (buffer, "\r\n");
rc = mu_stream_write (io->_imap_stream, buffer, s, NULL);
if (rc)
return rc;
len -= s;
if (len == 0)
break;
buffer += s;
rc = mu_stream_write (io->_imap_stream, " ", 1, NULL);
if (rc)
return rc;
}
}
else
return mu_imapio_send_literal_string (io, buffer);
}
return mu_imapio_printf (io, "\"%s\"", buffer);
}
int
mu_imapio_send_qstring (struct _mu_imapio *io, const char *buffer)
{
return mu_imapio_send_qstring_unfold (io, buffer, 0);
}