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authorEric Andersen <andersen@codepoet.org>2002-06-17 21:12:16 +0000
committerEric Andersen <andersen@codepoet.org>2002-06-17 21:12:16 +0000
commitcdb3c81f36283df4b53f24a374d78c695e9d8b06 (patch)
tree9494bff7c98929e44c41dcdde32dc3fc6faf4330 /libc/inet/rpc/clnt_generic.c
parent6ba832b158c91c6b35e1832220b3fc5ebf76333f (diff)
Re-backport all the rpc stuff from glibc 2.2.5. This allows us to make this
junk (and I do mean that ;-) thread safe without undue pain. Adds 12k worth to the code size I'm afraid, but since I never use NFS and therefore never include this stuff, I guess thats acceptable. I still need to enable the multi-threaded bits... -Erik
Diffstat (limited to 'libc/inet/rpc/clnt_generic.c')
-rw-r--r--libc/inet/rpc/clnt_generic.c194
1 files changed, 126 insertions, 68 deletions
diff --git a/libc/inet/rpc/clnt_generic.c b/libc/inet/rpc/clnt_generic.c
index 5b4b5997f..79df33113 100644
--- a/libc/inet/rpc/clnt_generic.c
+++ b/libc/inet/rpc/clnt_generic.c
@@ -1,4 +1,3 @@
-/* @(#)clnt_generic.c 2.2 88/08/01 4.0 RPCSRC */
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
@@ -6,11 +5,11 @@
* 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.
@@ -18,20 +17,25 @@
* 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
*/
-#define __FORCE_GLIBC
-#include <features.h>
/*
* Copyright (C) 1987, Sun Microsystems, Inc.
*/
+
+#define __FORCE_GLIBC
+#include <features.h>
+
+#include <alloca.h>
+#include <errno.h>
+#include <string.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <sys/errno.h>
@@ -39,72 +43,126 @@
/*
* Generic client creation: takes (hostname, program-number, protocol) and
- * returns client handle. Default options are set, which the user can
+ * returns client handle. Default options are set, which the user can
* change using the rpc equivalent of ioctl()'s.
*/
-CLIENT *clnt_create __P ((const char *hostname, const u_long prog,
- const u_long vers, const char *proto))
+CLIENT *
+clnt_create (const char *hostname, u_long prog, u_long vers,
+ const char *proto)
{
- struct hostent *h;
- struct protoent *p;
- struct sockaddr_in sin;
- int sock;
- struct timeval tv;
- CLIENT *client;
+ struct hostent hostbuf, *h;
+ size_t hstbuflen;
+ char *hsttmpbuf;
+ struct protoent *p;
+ struct sockaddr_in sin;
+ struct sockaddr_un sun;
+ int sock;
+ struct timeval tv;
+ CLIENT *client;
+ int herr;
- 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);
- }
-#ifdef __linux__
- bzero((char *) &sin, sizeof(sin));
-#endif
- sin.sin_family = h->h_addrtype;
- sin.sin_port = 0;
-#ifndef __linux__
- bzero(sin.sin_zero, sizeof(sin.sin_zero));
+ if (strcmp (proto, "unix") == 0)
+ {
+ bzero ((char *)&sun, sizeof (sun));
+ sun.sun_family = AF_UNIX;
+ strcpy (sun.sun_path, hostname);
+ sock = RPC_ANYSOCK;
+ client = 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
- bcopy(h->h_addr, (char *) &sin.sin_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);
+ 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);
+
+#warning getprotobyname is not reentrant... Add getprotobyname_r
+ p = getprotobyname(proto);
+ if (p == NULL) {
+ struct rpc_createerr *ce = &get_rpc_createerr ();
+ ce->cf_stat = RPC_UNKNOWNPROTO;
+ ce->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;
}
- 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);
- }
- tv.tv_sec = 25;
- clnt_control(client, CLSET_TIMEOUT, (char*)&tv);
- break;
- case IPPROTO_TCP:
- client = clnttcp_create(&sin, prog, vers, &sock, 0, 0);
- if (client == NULL) {
- return (NULL);
- }
- tv.tv_sec = 25;
- tv.tv_usec = 0;
- clnt_control(client, CLSET_TIMEOUT, (char*)&tv);
- break;
- default:
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
- 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 = clnttcp_create (&sin, prog, vers, &sock, 0, 0);
+ if (client == NULL)
+ {
+ return NULL;
}
- return (client);
+#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;
}