http.cc
2.12 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
/*
GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2004, 2006, 2007, 2009 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA
*/
/* This is an example program to illustrate the use of stream functions.
It connects to a remote HTTP server and prints the contents of its
index page */
#include <iostream>
#include <mailutils/cpp/mailutils.h>
using namespace std;
using namespace mailutils;
string wbuf = "GET / HTTP/1.0\r\n\r\n";
string rbuf;
int
main ()
{
int off = 0;
try {
TcpStream stream ("www.gnu.org", 80, MU_STREAM_NONBLOCK);
connect_again:
try {
stream.open ();
}
catch (Stream::EAgain) {
stream.wait (MU_STREAM_READY_WR);
goto connect_again;
}
write_again:
try {
string wbuf (wbuf, off, wbuf.length ());
stream << wbuf;
}
catch (Stream::EAgain) {
stream.wait (MU_STREAM_READY_WR);
off += stream.get_write_count ();
goto write_again;
}
if (stream.get_write_count () != wbuf.length ())
{
cerr << "stream.get_write_count() != wbuf length" << endl;
exit (1);
}
read_again:
do
{
try {
stream >> rbuf;
}
catch (Stream::EAgain) {
stream.wait (MU_STREAM_READY_RD);
goto read_again;
}
cout << rbuf.substr (0, stream.get_read_count ());
}
while (stream.get_read_count ());
}
catch (Exception& e) {
cerr << e.method () << ": " << e.what () << endl;
exit (1);
}
return 0;
}