1 /* Copyright (C) 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 #include <sys/socket.h>
33 # define __socket(d, t, p) socket ((d), (t), (p))
34 # define __close(f) close ((f))
38 svc_socket (u_long number, int type, int protocol, int reuse)
40 struct sockaddr_in addr;
41 socklen_t len = sizeof (struct sockaddr_in);
42 char rpcdata [1024], servdata [1024];
43 struct rpcent rpcbuf, *rpcp;
44 struct servent servbuf, *servp;
46 const char *proto = protocol == IPPROTO_TCP ? "tcp" : "udp";
48 if ((sock = __socket (AF_INET, type, protocol)) < 0)
50 perror (_("svc_socket: socket creation problem"));
57 ret = setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, &ret,
61 perror (_("svc_socket: socket reuse problem"));
66 __bzero ((char *) &addr, sizeof (addr));
67 addr.sin_family = AF_INET;
69 ret = getrpcbynumber_r (number, &rpcbuf, rpcdata, sizeof rpcdata,
71 if (ret == 0 && rpcp != NULL)
74 ret = getservbyname_r (rpcp->r_name, proto, &servbuf, servdata,
75 sizeof servdata, &servp);
76 if ((ret != 0 || servp == NULL) && rpcp->r_aliases)
80 /* Then we try aliases. */
81 for (a = (const char **) rpcp->r_aliases; *a != NULL; a++)
83 ret = getservbyname_r (*a, proto, &servbuf, servdata,
84 sizeof servdata, &servp);
85 if (ret == 0 && servp != NULL)
91 if (ret == 0 && servp != NULL)
93 addr.sin_port = servp->s_port;
94 if (bind (sock, (struct sockaddr *) &addr, len) < 0)
96 perror (_("svc_socket: bind problem"));
97 (void) __close (sock);
103 if (bindresvport (sock, &addr))
106 if (bind (sock, (struct sockaddr *) &addr, len) < 0)
108 perror (_("svc_socket: bind problem"));
109 (void) __close (sock);
119 * Create and bind a TCP socket based on program number
122 svctcp_socket (u_long number, int reuse)
124 return svc_socket (number, SOCK_STREAM, IPPROTO_TCP, reuse);
128 * Create and bind a UDP socket based on program number
131 svcudp_socket (u_long number, int reuse)
133 return svc_socket (number, SOCK_DGRAM, IPPROTO_UDP, reuse);
138 check (u_long number, u_short port, int protocol, int reuse)
142 struct sockaddr_in addr;
143 socklen_t len = sizeof (struct sockaddr_in);
145 if (protocol == IPPROTO_TCP)
146 socket = svctcp_socket (number, reuse);
148 socket = svcudp_socket (number, reuse);
153 result = getsockname (socket, (struct sockaddr *) &addr, &len);
156 if (port != 0 && ntohs (addr.sin_port) != port)
157 printf ("Program: %ld, expect port: %d, got: %d\n",
158 number, port, ntohs (addr.sin_port));
160 printf ("Program: %ld, port: %d\n",
161 number, ntohs (addr.sin_port));
173 result += check (100001, 0, IPPROTO_TCP, 0);
174 result += check (100001, 0, IPPROTO_UDP, 0);
175 result += check (100003, 2049, IPPROTO_TCP, 1);
176 result += check (100003, 2049, IPPROTO_UDP, 1);