glibc/sunrpc/bindrsvprt6.c

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Update. 2000-01-23 Philip Blundell <philb@gnu.org> Add basic support for RPC over IPv6: * sunrpc/rpc/svc.h (struct SVCXPRT): Use `struct sockaddr_storage' for remote address. (svcudp6_create, svcudp6_bufcreate, svctcp6_create): New prototypes. * sunrpc/rpc/clnt.h (clnttcp6_create, clntudp6_create, clntudp6_bufcreate): New prototypes. * inet/netinet/in.h (bindresport6): Likewise. * sunrpc/Makefile (routines): Add svc_tcp6, svc_udp6, bindrsvprt6. * sunrpc/Versions: Add svcfd6_create, svctcp6_create, svcudp6_create, svcudp6_bufcreate, svcudp6_enablecache, bindresvport6 for GLIBC_2.2. * sunrpc/rpc_main.c: Support `tcp6' and `udp6' transport types. * sunrpc/rpc_svcout.c: Likewise. * sunrpc/svc_tcp.c (rendezvous_request): Use memcpy rather than simple assignment when copying addresses. * sunrpc/svc_udp.c (cache_get): Likewise. * sunrpc/svc_unix.c (rendezvous_request): Likewise. * sunrpc/bindrsvprt6.c, sunrpc/clnt_tcp6.c, sunrpc/clnt_udp6.c, sunrpc/svc_tcp6.c, sunrpc/svc_udp6.c: New files. 2000-01-05 Philip Blundell <philb@gnu.org> * sysdeps/unix/sysv/linux/arm/mmap64.S: Correct check for ENOSYS. 2000-01-23 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/i386/fxstat.c (__fxstat): Pass right parameter to fstat calls. 2000-01-18 Roland McGrath <roland@baalperazim.frob.com> * sysdeps/generic/bits/socket.h (__ss_aligntype, struct sockaddr_storage): Make these like Linux version, replacing old type name `__ss_align'. 2000-01-05 Roland McGrath <roland@baalperazim.frob.com> * sysdeps/generic/lseek64.c (__libc_lseek64): Renamed from __lseek64. (__lseek64, lseek64): Make these weak aliases for __libc_lseek64. * sysdeps/mach/hurd/lseek.c (__libc_lseek): Renamed from __lseek. (__lseek, lseek): Make these weak aliases for __libc_lseek. * sysdeps/mach/hurd/fcntl.c (__libc_fcntl): Renamed from __fcntl. (__fcntl, fcntl): Make these weak aliases for __libc_fcntl. * sysdeps/mach/hurd/open.c (__libc_open): Renamed from __open. (__open, open): Make these weak aliases for __libc_open. * sysdeps/generic/bits/socket.h (enum __socket_type): Remove trailing comma. (anonymous enum for MSG_*): Likewise. (anonymous enum for SO_*): Likewise. 2000-01-23 Ulrich Drepper <drepper@cygnus.com> * string/bits/string2.h: Fix typo (__GNU_SOURCE -> __USE_GNU) (PR libc/1553).
2000-01-24 02:22:13 +00:00
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
/*
* Copyright (c) 1987 by Sun Microsystems, Inc.
*/
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
/*
* Bind a socket to a privileged IP port
*/
int
bindresvport6 (int sd, struct sockaddr_in6 *sin)
{
int res;
static short port;
struct sockaddr_in6 myaddr;
int i;
#define STARTPORT 600
#define ENDPORT (IPPORT_RESERVED - 1)
#define NPORTS (ENDPORT - STARTPORT + 1)
if (sin == (struct sockaddr_in6 *) 0)
{
sin = &myaddr;
__bzero (sin, sizeof (*sin));
sin->sin6_family = AF_INET6;
}
else if (sin->sin6_family != AF_INET6)
{
__set_errno (EPFNOSUPPORT);
return -1;
}
if (port == 0)
{
port = (__getpid () % NPORTS) + STARTPORT;
}
res = -1;
__set_errno (EADDRINUSE);
for (i = 0; i < NPORTS && res < 0 && errno == EADDRINUSE; ++i)
{
sin->sin6_port = htons (port++);
if (port > ENDPORT)
{
port = STARTPORT;
}
res = bind (sd, sin, sizeof (struct sockaddr_in6));
}
return res;
}