5c6e674735
The new __libc_rpc_gethostbyname function calls gethostbyname2_r
with an AF_INET argument and is therefore not affected by the
RES_USE_INET6 flag.
Validated with the following test program, with and without
RES_OPTIONS=inet6, against a NFS server. (Link with -lrpcsvc.)
#include <rpc/clnt.h>
#include <rpcsvc/mount.h>
#include <stdio.h>
#include <string.h>
static void
usage (char **argv)
{
printf ("usage:\n"
" %1$s HOST getrpcport\n"
" %1$s HOST callrpc\n"
" %1$s HOST clnt_create\n",
argv[0]);
}
static void
dump_exports (struct exportnode *exports)
{
while (exports != NULL)
{
printf ("%s\n", exports->ex_dir);
exports = exports->ex_next;
}
}
int
main (int argc, char **argv)
{
if (argc != 3)
{
usage (argv);
return 1;
}
const char *host = argv[1];
const char *command = argv[2];
if (strcmp (command, "getrpcport") == 0)
{
int port = getrpcport (host, MOUNTPROG, MOUNTVERS, IPPROTO_UDP);
printf ("getrpcport: %d\n", port);
}
else if (strcmp (command, "callrpc") == 0)
{
struct exportnode *exports = NULL;
int ret = callrpc (host, MOUNTPROG, MOUNTVERS, MOUNTPROC_EXPORT,
(xdrproc_t) xdr_void, NULL,
(xdrproc_t) xdr_exports, (char *)&exports);
if (ret != 0)
{
clnt_perrno (ret);
puts ("");
return 1;
}
dump_exports (exports);
}
else if (strcmp (command, "clnt_create") == 0)
{
CLIENT *client = clnt_create
(host, MOUNTPROG, MOUNTVERS, "udp");
if (client == NULL)
{
printf ("error: clnt_create failed\n");
return 1;
}
struct exportnode *exports = NULL;
int ret = CLNT_CALL (client, MOUNTPROC_EXPORT,
(xdrproc_t) xdr_void, NULL,
(xdrproc_t) xdr_exports, (char *)&exports,
((struct timeval) {15, 0}));
if (ret != 0)
{
clnt_perrno (ret);
puts ("");
return 1;
}
dump_exports (exports);
}
else
{
usage (argv);
return 1;
}
return 0;
}
147 lines
4.5 KiB
C
147 lines
4.5 KiB
C
/*
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* Copyright (c) 2010, Oracle America, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <alloca.h>
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#include <errno.h>
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#include <string.h>
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#include <rpc/rpc.h>
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#include <sys/socket.h>
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#include <netdb.h>
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/*
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* Generic client creation: takes (hostname, program-number, protocol) and
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* returns client handle. Default options are set, which the user can
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* change using the rpc equivalent of ioctl()'s.
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*/
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CLIENT *
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clnt_create (const char *hostname, u_long prog, u_long vers,
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const char *proto)
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{
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struct protoent protobuf, *p;
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size_t prtbuflen;
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char *prttmpbuf;
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struct sockaddr_in sin;
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struct sockaddr_un sun;
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int sock;
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struct timeval tv;
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CLIENT *client;
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if (strcmp (proto, "unix") == 0)
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{
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__bzero ((char *)&sun, sizeof (sun));
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sun.sun_family = AF_UNIX;
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strcpy (sun.sun_path, hostname);
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sock = RPC_ANYSOCK;
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client = clntunix_create (&sun, prog, vers, &sock, 0, 0);
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if (client == NULL)
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return NULL;
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#if 0
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/* This is not wanted. This would disable the user from having
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a timeout in the clnt_call() call. Only a call to cnlt_control()
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by the user should set the timeout value. */
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tv.tv_sec = 25;
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tv.tv_usec = 0;
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clnt_control (client, CLSET_TIMEOUT, (char *)&tv);
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#endif
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return client;
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}
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if (__libc_rpc_gethostbyname (hostname, &sin) != 0)
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return NULL;
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prtbuflen = 1024;
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prttmpbuf = __alloca (prtbuflen);
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while (__getprotobyname_r (proto, &protobuf, prttmpbuf, prtbuflen, &p) != 0
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|| p == NULL)
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if (errno != ERANGE)
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{
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struct rpc_createerr *ce = &get_rpc_createerr ();
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ce->cf_stat = RPC_UNKNOWNPROTO;
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ce->cf_error.re_errno = EPFNOSUPPORT;
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return NULL;
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}
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else
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{
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/* Enlarge the buffer. */
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prtbuflen *= 2;
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prttmpbuf = __alloca (prtbuflen);
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}
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sock = RPC_ANYSOCK;
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switch (p->p_proto)
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{
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case IPPROTO_UDP:
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tv.tv_sec = 5;
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tv.tv_usec = 0;
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client = clntudp_create (&sin, prog, vers, tv, &sock);
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if (client == NULL)
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{
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return NULL;
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}
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#if 0
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/* This is not wanted. This would disable the user from having
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a timeout in the clnt_call() call. Only a call to cnlt_control()
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by the user should set the timeout value. */
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tv.tv_sec = 25;
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clnt_control (client, CLSET_TIMEOUT, (char *)&tv);
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#endif
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break;
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case IPPROTO_TCP:
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client = clnttcp_create (&sin, prog, vers, &sock, 0, 0);
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if (client == NULL)
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{
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return NULL;
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}
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#if 0
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/* This is not wanted. This would disable the user from having
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a timeout in the clnt_call() call. Only a call to cnlt_control()
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by the user should set the timeout value. */
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tv.tv_sec = 25;
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tv.tv_usec = 0;
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clnt_control (client, CLSET_TIMEOUT, (char *)&tv);
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#endif
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break;
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default:
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{
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struct rpc_createerr *ce = &get_rpc_createerr ();
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ce->cf_stat = RPC_SYSTEMERROR;
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ce->cf_error.re_errno = EPFNOSUPPORT;
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}
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return (NULL);
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}
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return client;
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}
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#ifdef EXPORT_RPC_SYMBOLS
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libc_hidden_def (clnt_create)
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#else
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libc_hidden_nolink_sunrpc (clnt_create, GLIBC_2_0)
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#endif
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