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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/*
* Copyright (c) 2002-2010 Balabit
* Copyright (c) 1998-2010 Balázs Scheidler
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "gsocket.h"
#include <errno.h>
#include <arpa/inet.h>
/**
* g_inet_ntoa:
* @buf: store result in this buffer
* @bufsize: the available space in buf
* @a: address to convert.
*
* Thread friendly version of inet_ntoa(), converts an IP address to
* human readable form. Returns: the address of buf
**/
gchar *
g_inet_ntoa(char *buf, size_t bufsize, struct in_addr a)
{
unsigned int ip = ntohl(a.s_addr);
g_snprintf(buf, bufsize, "%d.%d.%d.%d",
(ip & 0xff000000) >> 24,
(ip & 0x00ff0000) >> 16,
(ip & 0x0000ff00) >> 8,
(ip & 0x000000ff));
return buf;
}
gint
g_inet_aton(const char *buf, struct in_addr *a)
{
return inet_aton(buf, a);
}
/**
* g_bind:
* @fd: fd to bind
* @addr: address to bind to
*
* A thin interface around bind() using a GSockAddr structure for
* socket address. It enables the NET_BIND_SERVICE capability (should be
* in the permitted set.
**/
GIOStatus
g_bind(int fd, GSockAddr *addr)
{
GIOStatus rc;
if (addr->sa_funcs && addr->sa_funcs->bind_prepare)
addr->sa_funcs->bind_prepare(fd, addr);
if (addr->sa_funcs && addr->sa_funcs->bind)
rc = addr->sa_funcs->bind(fd, addr);
else
{
if (addr && bind(fd, &addr->sa, addr->salen) < 0)
{
return G_IO_STATUS_ERROR;
}
rc = G_IO_STATUS_NORMAL;
}
return rc;
}
/**
* g_accept:
* @fd: accept connection on this socket
* @newfd: fd of the accepted connection
* @addr: store the address of the client here
*
* Accept a connection on the given fd, returning the newfd and the
* address of the client in a Zorp SockAddr structure.
*
* Returns: glib style I/O error
**/
GIOStatus
g_accept(int fd, int *newfd, GSockAddr **addr)
{
char sabuf[1024];
socklen_t salen = sizeof(sabuf);
do
{
*newfd = accept(fd, (struct sockaddr *) sabuf, &salen);
}
while (*newfd == -1 && errno == EINTR);
if (*newfd != -1)
{
*addr = g_sockaddr_new((struct sockaddr *) sabuf, salen);
}
else if (errno == EAGAIN)
{
return G_IO_STATUS_AGAIN;
}
else
{
return G_IO_STATUS_ERROR;
}
return G_IO_STATUS_NORMAL;
}
/**
* g_connect:
* @fd: socket to connect
* @remote: remote address
*
* Connect a socket using Zorp style GSockAddr structure.
*
* Returns: glib style I/O error
**/
GIOStatus
g_connect(int fd, GSockAddr *remote)
{
int rc;
do
{
rc = connect(fd, &remote->sa, remote->salen);
}
while (rc == -1 && errno == EINTR);
if (rc == -1)
{
if (errno == EAGAIN)
return G_IO_STATUS_AGAIN;
else
return G_IO_STATUS_ERROR;
}
else
{
return G_IO_STATUS_NORMAL;
}
}
GSockAddr *
g_socket_get_peer_name(gint fd)
{
GSockAddr *result = NULL;
struct sockaddr_storage addr;
socklen_t len = sizeof(addr);
if (getpeername(fd, (struct sockaddr *)&addr, &len) == 0)
{
result = g_sockaddr_new((struct sockaddr *)&addr, len);
}
return result;
}
GSockAddr *
g_socket_get_local_name(gint fd)
{
GSockAddr *result = NULL;
struct sockaddr_storage addr;
socklen_t len = sizeof(addr);
if (getsockname(fd, (struct sockaddr *)&addr, &len) == 0)
{
result = g_sockaddr_new((struct sockaddr *)&addr, len);
}
return result;
}
|
