char *
clnt_spcreateerror (const char *msg)
{
char chrbuf[1024];
char *str = _buf ();
char *cp;
int len;
struct rpc_createerr *ce;
if (str == NULL)
return NULL;
ce = &get_rpc_createerr ();
len = sprintf (str, "%s: ", msg);
cp = str + len;
cp = stpcpy (cp, clnt_sperrno (ce->cf_stat));
switch (ce->cf_stat)
{
case RPC_PMAPFAILURE:
cp = stpcpy (stpcpy (cp, " - "),
clnt_sperrno (ce->cf_error.re_status));
break;
case RPC_SYSTEMERROR:
cp = stpcpy (stpcpy (cp, " - "),
__strerror_r (ce->cf_error.re_errno,
chrbuf, sizeof chrbuf));
break;
default:
break;
}
*cp = '\n';
*++cp = '\0';
return str;
}
/*
* Generic client creation: takes (hostname, program-number, protocol) and
* returns client handle. Default options are set, which the user can
* change using the rpc equivalent of ioctl()'s.
*/
CLIENT *clnt_pci_create(const char *hostname,
u_long prog, u_long vers, const char *proto)
{
CLIENT *client;
struct sockaddr_nl src_addr, dest_addr;
int sock_fd;
sock_fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_RPC_PCI_CLNT);
if (sock_fd < 0)
goto err;
memset(&src_addr, 0, sizeof(src_addr));
src_addr.nl_family = AF_NETLINK;
src_addr.nl_pid = getpid(); /* self pid */
bind(sock_fd, (struct sockaddr *)&src_addr, sizeof(src_addr));
memset(&dest_addr, 0, sizeof(dest_addr));
memset(&dest_addr, 0, sizeof(dest_addr));
dest_addr.nl_family = AF_NETLINK;
dest_addr.nl_pid = 0; /* For Linux Kernel */
dest_addr.nl_groups = 0; /* unicast */
client = _clnt_pci_create(sock_fd, &src_addr, &dest_addr, prog, vers);
if (client == NULL)
close(sock_fd);
return client;
err:
#if 0
if (errno) {
struct rpc_createerr *ce = &get_rpc_createerr();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = error;
return NULL;
}
#endif
return NULL;
}
CLIENT *
clnttcp_create (struct sockaddr_in *raddr, u_long prog, u_long vers,
int *sockp, u_int sendsz, u_int recvsz)
{
CLIENT *h;
struct ct_data *ct;
struct rpc_msg call_msg;
h = (CLIENT *) mem_alloc (sizeof (*h));
ct = (struct ct_data *) mem_alloc (sizeof (*ct));
if (h == NULL || ct == NULL)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
#ifdef USE_IN_LIBIO
if (_IO_fwide (stderr, 0) > 0)
(void) fwprintf (stderr, L"%s",
_("clnttcp_create: out of memory\n"));
else
#endif
(void) fputs (_("clnttcp_create: out of memory\n"), stderr);
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = ENOMEM;
goto fooy;
}
/*
* If no port number given ask the pmap for one
*/
if (raddr->sin_port == 0)
{
u_short port;
if ((port = pmap_getport (raddr, prog, vers, IPPROTO_TCP)) == 0)
{
mem_free ((caddr_t) ct, sizeof (struct ct_data));
mem_free ((caddr_t) h, sizeof (CLIENT));
return ((CLIENT *) NULL);
}
raddr->sin_port = htons (port);
}
/*
* If no socket given, open one
*/
if (*sockp < 0)
{
*sockp = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
(void) bindresvport (*sockp, (struct sockaddr_in *) 0);
if ((*sockp < 0)
|| (connect (*sockp, (struct sockaddr *) raddr,
sizeof (*raddr)) < 0))
{
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = errno;
if (*sockp >= 0)
(void) close (*sockp);
goto fooy;
}
ct->ct_closeit = TRUE;
}
else
{
ct->ct_closeit = FALSE;
}
/*
* Set up private data struct
*/
ct->ct_sock = *sockp;
ct->ct_wait.tv_usec = 0;
ct->ct_waitset = FALSE;
ct->ct_addr = *raddr;
/*
* Initialize call message
*/
call_msg.rm_xid = _create_xid ();
call_msg.rm_direction = CALL;
call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
call_msg.rm_call.cb_prog = prog;
call_msg.rm_call.cb_vers = vers;
/*
* pre-serialize the static part of the call msg and stash it away
*/
xdrmem_create (&(ct->ct_xdrs), ct->ct_mcall, MCALL_MSG_SIZE,
XDR_ENCODE);
if (!xdr_callhdr (&(ct->ct_xdrs), &call_msg))
{
if (ct->ct_closeit)
{
(void) close (*sockp);
}
goto fooy;
}
ct->ct_mpos = XDR_GETPOS (&(ct->ct_xdrs));
XDR_DESTROY (&(ct->ct_xdrs));
/*
* Create a client handle which uses xdrrec for serialization
* and authnone for authentication.
*/
xdrrec_create (&(ct->ct_xdrs), sendsz, recvsz,
(caddr_t) ct, readtcp, writetcp);
h->cl_ops = &tcp_ops;
h->cl_private = (caddr_t) ct;
h->cl_auth = authnone_create ();
return h;
fooy:
/*
* Something goofed, free stuff and barf
*/
mem_free ((caddr_t) ct, sizeof (struct ct_data));
mem_free ((caddr_t) h, sizeof (CLIENT));
return ((CLIENT *) NULL);
}
int
callrpc (const char *host, u_long prognum, u_long versnum, u_long procnum,
xdrproc_t inproc, const char *in, xdrproc_t outproc, char *out)
{
struct callrpc_private_s *crp = callrpc_private;
struct sockaddr_in server_addr;
enum clnt_stat clnt_stat;
struct hostent hostbuf, *hp;
struct timeval timeout, tottimeout;
if (crp == 0)
{
crp = (struct callrpc_private_s *) calloc (1, sizeof (*crp));
if (crp == 0)
return 0;
callrpc_private = crp;
}
if (crp->oldhost == NULL)
{
crp->oldhost = malloc (256);
crp->oldhost[0] = 0;
crp->socket = RPC_ANYSOCK;
}
if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
&& strcmp (crp->oldhost, host) == 0)
{
/* reuse old client */
}
else
{
size_t buflen;
char *buffer;
int herr;
crp->valid = 0;
if (crp->socket != RPC_ANYSOCK)
{
(void) close (crp->socket);
crp->socket = RPC_ANYSOCK;
}
if (crp->client)
{
clnt_destroy (crp->client);
crp->client = NULL;
}
buflen = 1024;
buffer = alloca (buflen);
while (gethostbyname_r (host, &hostbuf, buffer, buflen,
&hp, &herr) != 0
|| hp == NULL)
if (herr != NETDB_INTERNAL || errno != ERANGE)
return (int) RPC_UNKNOWNHOST;
else
{
/* Enlarge the buffer. */
buflen *= 2;
buffer = alloca (buflen);
}
timeout.tv_usec = 0;
timeout.tv_sec = 5;
memcpy ((char *) &server_addr.sin_addr, hp->h_addr, hp->h_length);
server_addr.sin_family = AF_INET;
server_addr.sin_port = 0;
if ((crp->client = clntudp_create (&server_addr, (u_long) prognum,
(u_long) versnum, timeout, &crp->socket)) == NULL)
return (int) get_rpc_createerr().cf_stat;
crp->valid = 1;
crp->oldprognum = prognum;
crp->oldversnum = versnum;
(void) strncpy (crp->oldhost, host, 255);
crp->oldhost[255] = '\0';
}
tottimeout.tv_sec = 25;
tottimeout.tv_usec = 0;
clnt_stat = clnt_call (crp->client, procnum, inproc, (char *) in,
outproc, out, tottimeout);
/*
* if call failed, empty cache
*/
if (clnt_stat != RPC_SUCCESS)
crp->valid = 0;
return (int) clnt_stat;
}
/* libc_hidden_proto(clntudp_bufcreate) */
CLIENT *
clntudp_bufcreate (struct sockaddr_in *raddr, u_long program, u_long version,
struct timeval wait, int *sockp, u_int sendsz,
u_int recvsz)
{
CLIENT *cl;
struct cu_data *cu = NULL;
struct rpc_msg call_msg;
cl = (CLIENT *) mem_alloc (sizeof (CLIENT));
sendsz = ((sendsz + 3) / 4) * 4;
recvsz = ((recvsz + 3) / 4) * 4;
cu = (struct cu_data *) mem_alloc (sizeof (*cu) + sendsz + recvsz);
if (cl == NULL || cu == NULL)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
#ifdef USE_IN_LIBIO
if (_IO_fwide (stderr, 0) > 0)
(void) fwprintf (stderr, L"%s",
_("clntudp_create: out of memory\n"));
else
#endif
(void) fputs (_("clntudp_create: out of memory\n"), stderr);
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = ENOMEM;
goto fooy;
}
cu->cu_outbuf = &cu->cu_inbuf[recvsz];
if (raddr->sin_port == 0)
{
u_short port;
if ((port =
pmap_getport (raddr, program, version, IPPROTO_UDP)) == 0)
{
goto fooy;
}
raddr->sin_port = htons (port);
}
cl->cl_ops = &udp_ops;
cl->cl_private = (caddr_t) cu;
cu->cu_raddr = *raddr;
cu->cu_rlen = sizeof (cu->cu_raddr);
cu->cu_wait = wait;
cu->cu_total.tv_sec = -1;
cu->cu_total.tv_usec = -1;
cu->cu_sendsz = sendsz;
cu->cu_recvsz = recvsz;
call_msg.rm_xid = _create_xid ();
call_msg.rm_direction = CALL;
call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
call_msg.rm_call.cb_prog = program;
call_msg.rm_call.cb_vers = version;
xdrmem_create (&(cu->cu_outxdrs), cu->cu_outbuf,
sendsz, XDR_ENCODE);
if (!xdr_callhdr (&(cu->cu_outxdrs), &call_msg))
{
goto fooy;
}
cu->cu_xdrpos = XDR_GETPOS (&(cu->cu_outxdrs));
if (*sockp < 0)
{
int dontblock = 1;
*sockp = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (*sockp < 0)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = errno;
goto fooy;
}
/* attempt to bind to prov port */
(void) bindresvport (*sockp, (struct sockaddr_in *) 0);
/* the sockets rpc controls are non-blocking */
(void) ioctl (*sockp, FIONBIO, (char *) &dontblock);
#ifdef IP_RECVERR
{
int on = 1;
setsockopt(*sockp, SOL_IP, IP_RECVERR, &on, sizeof(on));
}
#endif
cu->cu_closeit = TRUE;
}
else
{
cu->cu_closeit = FALSE;
}
cu->cu_sock = *sockp;
cl->cl_auth = authnone_create ();
return cl;
fooy:
if (cu)
mem_free ((caddr_t) cu, sizeof (*cu) + sendsz + recvsz);
if (cl)
mem_free ((caddr_t) cl, sizeof (CLIENT));
return (CLIENT *) NULL;
}
/*
* Create a client handle for a tcp/ip connection.
* If *sockp<0, *sockp is set to a newly created TCP socket and it is
* connected to raddr. If *sockp non-negative then
* raddr is ignored. The rpc/tcp package does buffering
* similar to stdio, so the client must pick send and receive buffer sizes,];
* 0 => use the default.
* If raddr->sin_port is 0, then a binder on the remote machine is
* consulted for the right port number.
* NB: *sockp is copied into a private area.
* NB: It is the clients responsibility to close *sockp.
* NB: The rpch->cl_auth is set null authentication. Caller may wish to set this
* something more useful.
*/
CLIENT *
clntunix_create (struct sockaddr_un *raddr, u_long prog, u_long vers,
int *sockp, u_int sendsz, u_int recvsz)
{
CLIENT *h;
struct ct_data *ct = (struct ct_data *) mem_alloc (sizeof (*ct));
struct rpc_msg call_msg;
int len;
h = (CLIENT *) mem_alloc (sizeof (*h));
if (h == NULL || ct == NULL)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
(void) __fxprintf (NULL, "%s: %s", __func__, _("out of memory\n"));
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = ENOMEM;
goto fooy;
}
/*
* If no socket given, open one
*/
if (*sockp < 0)
{
*sockp = __socket (AF_UNIX, SOCK_STREAM, 0);
len = strlen (raddr->sun_path) + sizeof (raddr->sun_family) + 1;
if (*sockp < 0
|| __connect (*sockp, (struct sockaddr *) raddr, len) < 0)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = errno;
if (*sockp != -1)
__close (*sockp);
goto fooy;
}
ct->ct_closeit = TRUE;
}
else
{
ct->ct_closeit = FALSE;
}
/*
* Set up private data struct
*/
ct->ct_sock = *sockp;
ct->ct_wait.tv_usec = 0;
ct->ct_waitset = FALSE;
ct->ct_addr = *raddr;
/*
* Initialize call message
*/
call_msg.rm_xid = _create_xid ();
call_msg.rm_direction = CALL;
call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
call_msg.rm_call.cb_prog = prog;
call_msg.rm_call.cb_vers = vers;
/*
* pre-serialize the static part of the call msg and stash it away
*/
xdrmem_create (&(ct->ct_xdrs), ct->ct_mcall, MCALL_MSG_SIZE, XDR_ENCODE);
if (!xdr_callhdr (&(ct->ct_xdrs), &call_msg))
{
if (ct->ct_closeit)
__close (*sockp);
goto fooy;
}
ct->ct_mpos = XDR_GETPOS (&(ct->ct_xdrs));
XDR_DESTROY (&(ct->ct_xdrs));
/*
* Create a client handle which uses xdrrec for serialization
* and authnone for authentication.
*/
xdrrec_create (&(ct->ct_xdrs), sendsz, recvsz,
(caddr_t) ct, readunix, writeunix);
h->cl_ops = (struct clnt_ops *) &unix_ops;
h->cl_private = (caddr_t) ct;
h->cl_auth = authnone_create ();
return h;
fooy:
/*
* Something goofed, free stuff and barf
*/
mem_free ((caddr_t) ct, sizeof (struct ct_data));
mem_free ((caddr_t) h, sizeof (CLIENT));
return (CLIENT *) NULL;
}
/*
* Create a UDP based client handle.
* If *sockp<0, *sockp is set to a newly created UPD socket.
* If raddr->sin_port is 0 a binder on the remote machine
* is consulted for the correct port number.
* NB: It is the clients responsibility to close *sockp.
* NB: The rpch->cl_auth is initialized to null authentication.
* Caller may wish to set this something more useful.
*
* wait is the amount of time used between retransmitting a call if
* no response has been heard; retransmission occurs until the actual
* rpc call times out.
*
* sendsz and recvsz are the maximum allowable packet sizes that can be
* sent and received.
*/
CLIENT *
__libc_clntudp_bufcreate (struct sockaddr_in *raddr, u_long program,
u_long version, struct timeval wait, int *sockp,
u_int sendsz, u_int recvsz, int flags)
{
CLIENT *cl;
struct cu_data *cu = NULL;
struct rpc_msg call_msg;
cl = (CLIENT *) mem_alloc (sizeof (CLIENT));
sendsz = ((sendsz + 3) / 4) * 4;
recvsz = ((recvsz + 3) / 4) * 4;
cu = (struct cu_data *) mem_alloc (sizeof (*cu) + sendsz + recvsz);
if (cl == NULL || cu == NULL)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
(void) __fxprintf (NULL, "%s: %s",
"clntudp_create", _("out of memory\n"));
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = ENOMEM;
goto fooy;
}
cu->cu_outbuf = &cu->cu_inbuf[recvsz];
if (raddr->sin_port == 0)
{
u_short port;
if ((port =
pmap_getport (raddr, program, version, IPPROTO_UDP)) == 0)
{
goto fooy;
}
raddr->sin_port = htons (port);
}
cl->cl_ops = (struct clnt_ops *) &udp_ops;
cl->cl_private = (caddr_t) cu;
cu->cu_raddr = *raddr;
cu->cu_rlen = sizeof (cu->cu_raddr);
cu->cu_wait = wait;
cu->cu_total.tv_sec = -1;
cu->cu_total.tv_usec = -1;
cu->cu_sendsz = sendsz;
cu->cu_recvsz = recvsz;
call_msg.rm_xid = _create_xid ();
call_msg.rm_direction = CALL;
call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
call_msg.rm_call.cb_prog = program;
call_msg.rm_call.cb_vers = version;
xdrmem_create (&(cu->cu_outxdrs), cu->cu_outbuf, sendsz, XDR_ENCODE);
if (!xdr_callhdr (&(cu->cu_outxdrs), &call_msg))
{
goto fooy;
}
cu->cu_xdrpos = XDR_GETPOS (&(cu->cu_outxdrs));
if (*sockp < 0)
{
#ifdef SOCK_NONBLOCK
# ifndef __ASSUME_SOCK_CLOEXEC
if (__have_sock_cloexec >= 0)
# endif
{
*sockp = __socket (AF_INET, SOCK_DGRAM|SOCK_NONBLOCK|flags,
IPPROTO_UDP);
# ifndef __ASSUME_SOCK_CLOEXEC
if (__have_sock_cloexec == 0)
__have_sock_cloexec = *sockp >= 0 || errno != EINVAL ? 1 : -1;
# endif
}
#endif
#ifndef __ASSUME_SOCK_CLOEXEC
# ifdef SOCK_CLOEXEC
if (__have_sock_cloexec < 0)
# endif
{
*sockp = __socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
# ifdef SOCK_CLOEXEC
if (flags & SOCK_CLOEXEC)
__fcntl (*sockp, F_SETFD, FD_CLOEXEC);
# endif
}
#endif
if (__builtin_expect (*sockp < 0, 0))
{
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = errno;
goto fooy;
}
/* attempt to bind to prov port */
(void) bindresvport (*sockp, (struct sockaddr_in *) 0);
#ifndef __ASSUME_SOCK_CLOEXEC
# ifdef SOCK_CLOEXEC
if (__have_sock_cloexec < 0)
# endif
{
/* the sockets rpc controls are non-blocking */
int dontblock = 1;
(void) __ioctl (*sockp, FIONBIO, (char *) &dontblock);
}
#endif
#ifdef IP_RECVERR
{
int on = 1;
__setsockopt (*sockp, SOL_IP, IP_RECVERR, &on, sizeof(on));
}
#endif
cu->cu_closeit = TRUE;
}
else
{
cu->cu_closeit = FALSE;
}
cu->cu_sock = *sockp;
cl->cl_auth = authnone_create ();
return cl;
fooy:
if (cu)
mem_free ((caddr_t) cu, sizeof (*cu) + sendsz + recvsz);
if (cl)
mem_free ((caddr_t) cl, sizeof (CLIENT));
return (CLIENT *) NULL;
}
/*
* Generic client creation: takes (hostname, program-number, protocol) and
* returns client handle. Default options are set, which the user can
* change using the rpc equivalent of ioctl()'s.
*/
CLIENT *
clnt_create (const char *hostname, u_long prog, u_long vers,
const char *proto)
{
struct hostent hostbuf, *h;
size_t hstbuflen;
char *hsttmpbuf;
struct protoent protobuf, *p;
size_t prtbuflen;
char *prttmpbuf;
struct sockaddr_in sin;
struct sockaddr_un sun;
int sock;
struct timeval tv;
CLIENT *client;
int herr;
if (strcmp (proto, "unix") == 0)
{
__bzero ((char *)&sun, sizeof (sun));
sun.sun_family = AF_UNIX;
strcpy (sun.sun_path, hostname);
sock = RPC_ANYSOCK;
client = INTUSE(clntunix_create) (&sun, prog, vers, &sock, 0, 0);
if (client == NULL)
return NULL;
#if 0
/* This is not wanted. This would disable the user from having
a timeout in the clnt_call() call. Only a call to cnlt_control()
by the user should set the timeout value. */
tv.tv_sec = 25;
tv.tv_usec = 0;
clnt_control (client, CLSET_TIMEOUT, (char *)&tv);
#endif
return client;
}
hstbuflen = 1024;
hsttmpbuf = __alloca (hstbuflen);
while (__gethostbyname_r (hostname, &hostbuf, hsttmpbuf, hstbuflen,
&h, &herr) != 0
|| h == NULL)
if (herr != NETDB_INTERNAL || errno != ERANGE)
{
get_rpc_createerr().cf_stat = RPC_UNKNOWNHOST;
return NULL;
}
else
{
/* Enlarge the buffer. */
hstbuflen *= 2;
hsttmpbuf = __alloca (hstbuflen);
}
if (h->h_addrtype != AF_INET)
{
/*
* Only support INET for now
*/
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = EAFNOSUPPORT;
return NULL;
}
sin.sin_family = h->h_addrtype;
sin.sin_port = 0;
__bzero (sin.sin_zero, sizeof (sin.sin_zero));
memcpy ((char *) &sin.sin_addr, h->h_addr, h->h_length);
prtbuflen = 1024;
prttmpbuf = __alloca (prtbuflen);
while (__getprotobyname_r (proto, &protobuf, prttmpbuf, prtbuflen, &p) != 0
|| p == NULL)
if (errno != ERANGE)
{
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_UNKNOWNPROTO;
ce->cf_error.re_errno = EPFNOSUPPORT;
return NULL;
}
else
{
/* Enlarge the buffer. */
prtbuflen *= 2;
prttmpbuf = __alloca (prtbuflen);
}
sock = RPC_ANYSOCK;
switch (p->p_proto)
{
case IPPROTO_UDP:
tv.tv_sec = 5;
tv.tv_usec = 0;
client = INTUSE(clntudp_create) (&sin, prog, vers, tv, &sock);
if (client == NULL)
{
return NULL;
}
#if 0
/* This is not wanted. This would disable the user from having
a timeout in the clnt_call() call. Only a call to cnlt_control()
by the user should set the timeout value. */
tv.tv_sec = 25;
clnt_control (client, CLSET_TIMEOUT, (char *)&tv);
#endif
break;
case IPPROTO_TCP:
client = INTUSE(clnttcp_create) (&sin, prog, vers, &sock, 0, 0);
if (client == NULL)
{
return NULL;
}
#if 0
/* This is not wanted. This would disable the user from having
a timeout in the clnt_call() call. Only a call to cnlt_control()
by the user should set the timeout value. */
tv.tv_sec = 25;
tv.tv_usec = 0;
clnt_control (client, CLSET_TIMEOUT, (char *)&tv);
#endif
break;
default:
{
struct rpc_createerr *ce = &get_rpc_createerr ();
ce->cf_stat = RPC_SYSTEMERROR;
ce->cf_error.re_errno = EPFNOSUPPORT;
}
return (NULL);
}
return client;
}
