freebsd-dev/lib/libc/rpc/clnt_generic.c
Daniel Eischen d201fe46e3 Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions.  If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
	__sys_foo - actual system call
	_foo - weak definition to __sys_foo
	foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo.  In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde).  All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes.  <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h  namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE.  We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by:	-arch
2001-01-24 13:01:12 +00:00

138 lines
3.8 KiB
C

/*
* 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
*/
#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)clnt_generic.c 1.4 87/08/11 (C) 1987 SMI";*/
/*static char *sccsid = "from: @(#)clnt_generic.c 2.2 88/08/01 4.0 RPCSRC";*/
static char *rcsid = "$FreeBSD$";
#endif
/*
* Copyright (C) 1987, Sun Microsystems, Inc.
*/
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <errno.h>
#include <netdb.h>
#include <string.h>
/*
* 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(hostname, prog, vers, proto)
char *hostname;
u_long prog;
u_long vers;
char *proto;
{
struct hostent *h;
struct protoent *p;
struct sockaddr_in sin;
struct sockaddr_un sun;
int sock;
static struct timeval tv;
CLIENT *client;
if (!strcmp(proto, "unix")) {
bzero((char *)&sun, sizeof(sun));
sun.sun_family = AF_UNIX;
strcpy(sun.sun_path, hostname);
sun.sun_len = sizeof(sun.sun_len) + sizeof(sun.sun_family) +
strlen(sun.sun_path) + 1;
sock = RPC_ANYSOCK;
client = clntunix_create(&sun, prog, vers, &sock, 0, 0);
if (client == NULL)
return(NULL);
tv.tv_sec = 25;
tv.tv_usec = 0;
clnt_control(client, CLSET_TIMEOUT, &tv);
return(client);
}
h = gethostbyname(hostname);
if (h == NULL) {
rpc_createerr.cf_stat = RPC_UNKNOWNHOST;
return (NULL);
}
if (h->h_addrtype != AF_INET) {
/*
* Only support INET for now
*/
rpc_createerr.cf_stat = RPC_SYSTEMERROR;
rpc_createerr.cf_error.re_errno = EAFNOSUPPORT;
return (NULL);
}
memset(&sin, 0, sizeof(sin));
sin.sin_len = sizeof(struct sockaddr_in);
sin.sin_family = h->h_addrtype;
sin.sin_port = 0;
memcpy((char*)&sin.sin_addr, h->h_addr, h->h_length);
p = getprotobyname(proto);
if (p == NULL) {
rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
return (NULL);
}
sock = RPC_ANYSOCK;
switch (p->p_proto) {
case IPPROTO_UDP:
tv.tv_sec = 5;
tv.tv_usec = 0;
client = clntudp_create(&sin, prog, vers, tv, &sock);
if (client == NULL) {
return (NULL);
}
#if 0 /* XXX do we need this? */
tv.tv_sec = 25;
tv.tv_usec = 0;
clnt_control(client, CLSET_TIMEOUT, &tv);
#endif
break;
case IPPROTO_TCP:
client = clnttcp_create(&sin, prog, vers, &sock, 0, 0);
if (client == NULL) {
return (NULL);
}
#if 0 /* XXX do we need this? */
tv.tv_sec = 25;
tv.tv_usec = 0;
clnt_control(client, CLSET_TIMEOUT, &tv);
#endif
break;
default:
rpc_createerr.cf_stat = RPC_SYSTEMERROR;
rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
return (NULL);
}
return (client);
}