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
|
/* -*- linux-c -*- */
/* $Id: server-tcp.c 4 2004-01-14 18:14:29Z lennart $ */
/***
This file is part of bidilink.
bidilink 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 2 of the License, or
(at your option) any later version.
bidilink 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 bidilink; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <inttypes.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <netdb.h>
#include <unistd.h>
#include "server-tcp6.h"
struct stream* stream_server_tcp6(const char *args) {
struct stream *s = NULL;
int fd = -1, cfd;
struct addrinfo hints, *res, *ressave;
size_t l;
const char *port = "23";
char hn[256] = "";
int n;
l = strcspn(args, "/");
if (l > sizeof(hn)-1)
l = sizeof(hn)-1;
if (args[l] == '/') {
strncpy(hn, args, l);
hn[l] = 0;
port = args+l+1;
}
s = malloc(sizeof(struct stream));
assert(s);
memset(s, 0, sizeof(struct stream));
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
fprintf(stderr, "hn = %s, port = %s\n", hn, port);
n = getaddrinfo(hn[0] ? hn : "::", port, &hints, &res);
if (n < 0) {
fprintf(stderr,
"getaddrinfo error:: [%s]\n",
strerror(errno));
goto fail;
}
ressave = res;
fd=-1;
while (res) {
fd = socket(res->ai_family,
res->ai_socktype,
res->ai_protocol);
if (!(fd < 0)) {
if (bind(fd, res->ai_addr, res->ai_addrlen) == 0)
break;
close(fd);
fd = -1;
}
res = res->ai_next;
}
freeaddrinfo(ressave);
if(fd < 0)
goto fail;
if (listen(fd, 1) < 0) {
fprintf(stderr, "listen(): %s\n", strerror(errno));
goto fail;
}
if ((cfd = accept(fd, NULL, 0)) < 0) {
fprintf(stderr, "accept(): %s\n", strerror(errno));
goto fail;
}
close(fd);
s->input_fd = s->output_fd = cfd;
return s;
fail:
free(s);
if (fd >= 0)
close(fd);
return NULL;
}
|
