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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* This file is part of GNU Dico.
Copyright (C) 2008, 2010 Sergey Poznyakoff
GNU Dico 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 Dico 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 Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <dicod.h>
extern int option_mime;
off_t total_bytes_out;
#define OSTREAM_INITIALIZED 0x01
#define OSTREAM_DESTROY_TRANSPORT 0x02
struct ostream {
dico_stream_t transport;
off_t nout;
int flags;
dico_assoc_list_t headers;
};
static int
print_headers(struct ostream *ostr)
{
int rc = 0;
const char *enc;
if (ostr->headers) {
dico_iterator_t itr;
struct dico_assoc *p;
itr = dico_assoc_iterator(ostr->headers);
for (p = dico_iterator_first(itr); p; p = dico_iterator_next(itr)) {
dico_stream_write(ostr->transport, p->key, strlen(p->key));
dico_stream_write(ostr->transport, ": ", 2);
dico_stream_write(ostr->transport, p->value, strlen(p->value));
dico_stream_write(ostr->transport, "\r\n", 2);
}
dico_iterator_destroy(&itr);
}
rc = dico_stream_write(ostr->transport, "\r\n", 2);
if (rc == 0
&& (enc = dico_assoc_find(ostr->headers,
CONTENT_TRANSFER_ENCODING_HEADER))
&& strcmp(enc, "8bit")) {
dico_stream_t str = dico_codec_stream_create(enc,
FILTER_ENCODE,
ostr->transport);
if (str) {
ostr->transport = str;
ostr->flags |= OSTREAM_DESTROY_TRANSPORT;
}
}
return rc;
}
static int
ostream_write(void *data, const char *buf, size_t size, size_t *pret)
{
struct ostream *ostr = data;
if (!(ostr->flags & OSTREAM_INITIALIZED)) {
if (option_mime && print_headers(ostr))
return dico_stream_last_error(ostr->transport);
ostr->flags |= OSTREAM_INITIALIZED;
}
if (buf[0] == '.' && dico_stream_write(ostr->transport, ".", 1))
return dico_stream_last_error(ostr->transport);
*pret = size;
return dico_stream_write(ostr->transport, buf, size);
}
static int
ostream_flush(void *data)
{
struct ostream *ostr = data;
return dico_stream_flush(ostr->transport);
}
static int
ostream_destroy(void *data)
{
struct ostream *ostr = data;
if (ostr->flags & OSTREAM_DESTROY_TRANSPORT)
dico_stream_destroy(&ostr->transport);
free(data);
return 0;
}
static int
ostream_ioctl(void *data, int code, void *call_data)
{
struct ostream *ostr = data;
switch (code) {
case DICO_IOCTL_GET_TRANSPORT:
*(dico_stream_t*)call_data = ostr->transport;
break;
case DICO_IOCTL_SET_TRANSPORT:
ostr->transport = call_data;
break;
case DICO_IOCTL_BYTES_OUT:
dico_stream_flush(ostr->transport);
*(off_t*)call_data = dico_stream_bytes_out(ostr->transport) -
ostr->nout;
break;
default:
errno = EINVAL;
return -1;
}
return 0;
}
dico_stream_t
dicod_ostream_create(dico_stream_t str, dico_assoc_list_t headers)
{
struct ostream *ostr = xmalloc(sizeof(*ostr));
dico_stream_t stream;
int rc = dico_stream_create(&stream, DICO_STREAM_WRITE, ostr);
if (rc)
xalloc_die();
ostr->transport = str;
ostr->nout = dico_stream_bytes_out(str);
ostr->flags = 0;
ostr->headers = headers;
dico_stream_set_write(stream, ostream_write);
dico_stream_set_flush(stream, ostream_flush);
dico_stream_set_destroy(stream, ostream_destroy);
dico_stream_set_ioctl(stream, ostream_ioctl);
dico_stream_set_buffer(stream, dico_buffer_line, 1024);
return stream;
}
|
