minix/lib/libc/rpc/clnt_simple.c
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

216 lines
5.8 KiB
C

/* $NetBSD: clnt_simple.c,v 1.30 2010/12/08 02:06:38 joerg Exp $ */
/*
* 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) 1986-1991 by Sun Microsystems Inc.
*/
/* #ident "@(#)clnt_simple.c 1.17 94/04/24 SMI" */
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)clnt_simple.c 1.49 89/01/31 Copyr 1984 Sun Micro";
#else
__RCSID("$NetBSD: clnt_simple.c,v 1.30 2010/12/08 02:06:38 joerg Exp $");
#endif
#endif
/*
* clnt_simple.c
* Simplified front end to client rpc.
*
*/
#include "namespace.h"
#include "reentrant.h"
#include <sys/param.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <rpc/rpc.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#ifdef __weak_alias
__weak_alias(rpc_call,_rpc_call)
#endif
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif
#ifndef NETIDLEN
#define NETIDLEN 32
#endif
struct rpc_call_private {
int valid; /* Is this entry valid ? */
CLIENT *client; /* Client handle */
pid_t pid; /* process-id at moment of creation */
rpcprog_t prognum; /* Program */
rpcvers_t versnum; /* Version */
char host[MAXHOSTNAMELEN]; /* Servers host */
char nettype[NETIDLEN]; /* Network type */
};
static struct rpc_call_private *rpc_call_private_main;
#ifdef _REENTRANT
static void rpc_call_destroy __P((void *));
static void
rpc_call_destroy(void *vp)
{
struct rpc_call_private *rcp = (struct rpc_call_private *)vp;
if (rcp) {
if (rcp->client)
CLNT_DESTROY(rcp->client);
free(rcp);
}
}
static thread_key_t rpc_call_key;
static once_t rpc_call_once = ONCE_INITIALIZER;
static void
rpc_call_setup(void)
{
thr_keycreate(&rpc_call_key, rpc_call_destroy);
}
#endif
/*
* This is the simplified interface to the client rpc layer.
* The client handle is not destroyed here and is reused for
* the future calls to same prog, vers, host and nettype combination.
*
* The total time available is 25 seconds.
*/
enum clnt_stat
rpc_call(host, prognum, versnum, procnum, inproc, in, outproc, out, nettype)
const char *host; /* host name */
rpcprog_t prognum; /* program number */
rpcvers_t versnum; /* version number */
rpcproc_t procnum; /* procedure number */
xdrproc_t inproc, outproc; /* in/out XDR procedures */
const char *in;
char *out; /* recv/send data */
const char *nettype; /* nettype */
{
struct rpc_call_private *rcp = (struct rpc_call_private *) 0;
enum clnt_stat clnt_stat;
struct timeval timeout, tottimeout;
_DIAGASSERT(host != NULL);
/* XXX: in may be NULL ??? */
/* XXX: out may be NULL ??? */
/* XXX: nettype may be NULL ??? */
#ifdef _REENTRANT
if (__isthreaded == 0) {
rcp = rpc_call_private_main;
} else {
thr_once(&rpc_call_once, rpc_call_setup);
rcp = thr_getspecific(rpc_call_key);
}
#else
rcp = rpc_call_private_main;
#endif
if (rcp == NULL) {
rcp = malloc(sizeof (*rcp));
if (rcp == NULL) {
rpc_createerr.cf_stat = RPC_SYSTEMERROR;
rpc_createerr.cf_error.re_errno = errno;
return (rpc_createerr.cf_stat);
}
if (__isthreaded == 0)
rpc_call_private_main = rcp;
else
thr_setspecific(rpc_call_key, (void *) rcp);
rcp->valid = 0;
rcp->client = NULL;
}
if ((nettype == NULL) || (nettype[0] == 0))
nettype = "netpath";
if (!(rcp->valid && rcp->pid == getpid() &&
(rcp->prognum == prognum) &&
(rcp->versnum == versnum) &&
(!strcmp(rcp->host, host)) &&
(!strcmp(rcp->nettype, nettype)))) {
int fd;
rcp->valid = 0;
if (rcp->client)
CLNT_DESTROY(rcp->client);
/*
* Using the first successful transport for that type
*/
rcp->client = clnt_create(host, prognum, versnum, nettype);
rcp->pid = getpid();
if (rcp->client == NULL) {
return (rpc_createerr.cf_stat);
}
/*
* Set time outs for connectionless case. Do it
* unconditionally. Faster than doing a t_getinfo()
* and then doing the right thing.
*/
timeout.tv_usec = 0;
timeout.tv_sec = 5;
(void) CLNT_CONTROL(rcp->client,
CLSET_RETRY_TIMEOUT, (char *)(void *)&timeout);
if (CLNT_CONTROL(rcp->client, CLGET_FD, (char *)(void *)&fd))
(void)fcntl(fd, F_SETFD, FD_CLOEXEC);
rcp->prognum = prognum;
rcp->versnum = versnum;
if ((strlen(host) < (size_t)MAXHOSTNAMELEN) &&
(strlen(nettype) < (size_t)NETIDLEN)) {
(void) strcpy(rcp->host, host);
(void) strcpy(rcp->nettype, nettype);
rcp->valid = 1;
} else {
rcp->valid = 0;
}
} /* else reuse old client */
tottimeout.tv_sec = 25;
tottimeout.tv_usec = 0;
clnt_stat = CLNT_CALL(rcp->client, procnum, inproc, in,
outproc, out, tottimeout);
/*
* if call failed, empty cache
*/
if (clnt_stat != RPC_SUCCESS)
rcp->valid = 0;
return (clnt_stat);
}