ReactOS 0.4.15-dev-5895-g2687c1b
bindresvport.c
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1/*
2 * Copyright (c) 2009, Sun Microsystems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of Sun Microsystems, Inc. nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29//#include <sys/cdefs.h>
30
31/*
32 * Copyright (c) 1987 by Sun Microsystems, Inc.
33 *
34 * Portions Copyright(C) 1996, Jason Downs. All rights reserved.
35 */
36
37#include <wintirpc.h>
38#include <sys/types.h>
39//#include <sys/socket.h>
40
41//#include <netinet/in.h>
42
43#include <errno.h>
44#include <string.h>
45//#include <unistd.h>
46
47#include <rpc/rpc.h>
48
49/*
50 * Bind a socket to a privileged IP port
51 */
52int
54 SOCKET sd;
55 struct sockaddr_in *sin;
56{
57 return bindresvport_sa(sd, (struct sockaddr *)sin);
58}
59
60#ifdef __linux__
61
62#define STARTPORT 600
63#define LOWPORT 512
64#define ENDPORT (IPPORT_RESERVED - 1)
65#define NPORTS (ENDPORT - STARTPORT + 1)
66
67int
69 int sd;
70 struct sockaddr *sa;
71{
72 int res, af;
73 struct sockaddr_storage myaddr;
74 struct sockaddr_in *sin;
75#ifdef INET6
76 struct sockaddr_in6 *sin6;
77#endif
78 u_int16_t *portp;
79 static u_int16_t port;
80 static short startport = STARTPORT;
81 socklen_t salen;
82 int nports = ENDPORT - startport + 1;
83 int endport = ENDPORT;
84 int i;
85
86 if (sa == NULL) {
87 salen = sizeof(myaddr);
88 sa = (struct sockaddr *)&myaddr;
89
90 if (getsockname(sd, (struct sockaddr *)&myaddr, &salen) == -1)
91 return -1; /* errno is correctly set */
92
93 af = myaddr.ss_family;
94 } else
95 af = sa->sa_family;
96
97 switch (af) {
98 case AF_INET:
99 sin = (struct sockaddr_in *)sa;
100 salen = sizeof(struct sockaddr_in);
101 port = ntohs(sin->sin_port);
102 portp = &sin->sin_port;
103 break;
104#ifdef INET6
105 case AF_INET6:
106 sin6 = (struct sockaddr_in6 *)sa;
107 salen = sizeof(struct sockaddr_in6);
108 port = ntohs(sin6->sin6_port);
109 portp = &sin6->sin6_port;
110 break;
111#endif
112 default:
114 return (-1);
115 }
116 sa->sa_family = af;
117
118 if (port == 0) {
119 port = (getpid() % NPORTS) + STARTPORT;
120 }
121 res = -1;
123 again:
124 for (i = 0; i < nports; ++i) {
125 *portp = htons(port++);
126 if (port > endport)
127 port = startport;
128 res = bind(sd, sa, salen);
129 if (res >= 0 || errno != EADDRINUSE)
130 break;
131 }
132 if (i == nports && startport != LOWPORT) {
133 startport = LOWPORT;
134 endport = STARTPORT - 1;
135 nports = STARTPORT - LOWPORT;
136 port = LOWPORT + port % (STARTPORT - LOWPORT);
137 goto again;
138 }
139 return (res);
140}
141
142#else
143/*----------------------
144#if defined(_WIN32)
145
146int
147bindresvport_sa(SOCKET sd, struct sockaddr *sa)
148{
149 fprintf(stderr, "Do-nothing bindresvport_sa!\n");
150 return 0;
151}
152#else
153-------------------------*/
154#define IP_PORTRANGE 19
155#define IP_PORTRANGE_LOW 2
156
157/*
158 * Bind a socket to a privileged IP port
159 */
160int
162 SOCKET sd;
163 struct sockaddr *sa;
164{
165#ifdef IPV6_PORTRANGE
166 int old;
167#endif
168 int error, af;
169 struct sockaddr_storage myaddr;
170 struct sockaddr_in *sin;
171#ifdef INET6
172 struct sockaddr_in6 *sin6;
173#endif
174 int proto, portrange, portlow;
175 u_int16_t *portp;
176 socklen_t salen;
177#ifdef _WIN32
178 WSAPROTOCOL_INFO proto_info;
179 int proto_info_size = sizeof(proto_info);
180#endif
181
182 if (sa == NULL) {
183 salen = sizeof(myaddr);
184 sa = (struct sockaddr *)&myaddr;
185
186#ifdef _WIN32
187 memset(sa, 0, salen);
188 if (error = getsockopt(sd, SOL_SOCKET, SO_PROTOCOL_INFO, (char *)&proto_info, &proto_info_size) == SOCKET_ERROR) {
189#ifndef __REACTOS__
190 int sockerr = WSAGetLastError();
191#endif
192 return -1;
193 }
194 af = proto_info.iAddressFamily;
195#else
196 if (getsockname(sd, sa, &salen) == -1)
197 return -1; /* errno is correctly set */
198
199 af = sa->sa_family;
200 memset(sa, 0, salen);
201#endif
202 } else
203 af = sa->sa_family;
204
205 switch (af) {
206 case AF_INET:
208 portrange = IP_PORTRANGE;
209 portlow = IP_PORTRANGE_LOW;
210 sin = (struct sockaddr_in *)sa;
211 salen = sizeof(struct sockaddr_in);
212 portp = &sin->sin_port;
213 break;
214#ifdef INET6
215 case AF_INET6:
216 proto = IPPROTO_IPV6;
217#ifdef IPV6_PORTRANGE
218 portrange = IPV6_PORTRANGE;
219 portlow = IPV6_PORTRANGE_LOW;
220#endif
221 sin6 = (struct sockaddr_in6 *)sa;
222 salen = sizeof(struct sockaddr_in6);
223 portp = &sin6->sin6_port;
224 break;
225#endif /* INET6 */
226 default:
228 return (-1);
229 }
230 sa->sa_family = (ADDRESS_FAMILY) af;
231
232#ifdef IPV6_PORTRANGE
233 if (*portp == 0) {
234 socklen_t oldlen = sizeof(old);
235
236 error = getsockopt(sd, proto, portrange, &old, &oldlen);
237 if (error < 0)
238 return (error);
239
240 error = setsockopt(sd, proto, portrange, &portlow,
241 sizeof(portlow));
242 if (error < 0)
243 return (error);
244 }
245#endif
246
247 error = bind(sd, sa, salen);
248 if (error) {
249#ifndef __REACTOS__
250 int err = WSAGetLastError();
251#endif
252 }
253
254#ifdef IPV6_PORTRANGE
255 if (*portp == 0) {
256 int saved_errno = errno;
257
258 if (error < 0) {
259 if (setsockopt(sd, proto, portrange, &old,
260 sizeof(old)) < 0)
261 errno = saved_errno;
262 return (error);
263 }
264
265 if (sa != (struct sockaddr *)&myaddr) {
266 /* Hmm, what did the kernel assign? */
267 if (getsockname(sd, sa, &salen) < 0)
268 errno = saved_errno;
269 return (error);
270 }
271 }
272#endif
273 return (error);
274}
275/*
276#endif
277*/
278#endif
_STLP_DECLSPEC complex< float > _STLP_CALL sin(const complex< float > &)
static struct sockaddr_in sa
Definition: adnsresfilter.c:69
#define IP_PORTRANGE
Definition: bindresvport.c:154
int bindresvport(SOCKET sd, struct sockaddr_in *sin)
Definition: bindresvport.c:53
#define IP_PORTRANGE_LOW
Definition: bindresvport.c:155
int bindresvport_sa(SOCKET sd, struct sockaddr *sa)
Definition: bindresvport.c:161
#define NULL
Definition: types.h:112
USHORT port
Definition: uri.c:228
#define EADDRINUSE
Definition: errno.h:109
#define EPFNOSUPPORT
Definition: errno.h:106
#define AF_INET
Definition: tcpip.h:117
GLuint res
Definition: glext.h:9613
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define error(str)
Definition: mkdosfs.c:1605
#define htons(x)
Definition: module.h:213
#define ntohs(x)
Definition: module.h:208
int socklen_t
Definition: tcp.c:35
static const WCHAR sd[]
Definition: suminfo.c:286
#define err(...)
unsigned short u_int16_t
Definition: rosdhcp.h:34
#define errno
Definition: errno.h:18
#define memset(x, y, z)
Definition: compat.h:39
INT WSAAPI getsockname(IN SOCKET s, OUT LPSOCKADDR name, IN OUT INT FAR *namelen)
Definition: sockctrl.c:213
INT WSAAPI setsockopt(IN SOCKET s, IN INT level, IN INT optname, IN CONST CHAR FAR *optval, IN INT optlen)
Definition: sockctrl.c:421
INT WSAAPI getsockopt(IN SOCKET s, IN INT level, IN INT optname, OUT CHAR FAR *optval, IN OUT INT FAR *optlen)
Definition: sockctrl.c:271
INT WSAAPI bind(IN SOCKET s, IN CONST struct sockaddr *name, IN INT namelen)
Definition: socklife.c:36
USHORT sin6_port
Definition: ws2ipdef.h:180
#define WSAEPFNOSUPPORT
Definition: winerror.h:1959
#define SO_PROTOCOL_INFO
Definition: winsock2.h:253
int PASCAL FAR WSAGetLastError(void)
Definition: dllmain.c:112
UINT_PTR SOCKET
Definition: winsock.h:47
#define SOCKET_ERROR
Definition: winsock.h:333
#define SOL_SOCKET
Definition: winsock.h:398
#define AF_INET6
Definition: winsock.h:369
#define IPPROTO_IP
Definition: winsock.h:255
#define getpid
Definition: wintirpc.h:52
USHORT ADDRESS_FAMILY
Definition: ws2def.h:25