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-rw-r--r--libc/inet/rpc/clnt_simple.c191
1 files changed, 120 insertions, 71 deletions
diff --git a/libc/inet/rpc/clnt_simple.c b/libc/inet/rpc/clnt_simple.c
index 3ec4aedfe..fe65d4e23 100644
--- a/libc/inet/rpc/clnt_simple.c
+++ b/libc/inet/rpc/clnt_simple.c
@@ -6,110 +6,159 @@
* 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
*/
-#define __FORCE_GLIBC
-#include <features.h>
+#if !defined(lint) && defined(SCCSIDS)
+static char sccsid[] = "@(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";
+#endif
-/*
+/*
* clnt_simple.c
* Simplified front end to rpc.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
+#define __FORCE_GLIBC
+#include <features.h>
+
+#include <alloca.h>
+#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <netdb.h>
-#include <strings.h>
+#include <string.h>
-static struct callrpc_private {
- CLIENT *client;
- int socket;
- int oldprognum, oldversnum, valid;
- char *oldhost;
-} *callrpc_private;
+struct callrpc_private_s
+ {
+ CLIENT *client;
+ int socket;
+ u_long oldprognum, oldversnum, valid;
+ char *oldhost;
+ };
+#ifdef _RPC_THREAD_SAFE_
+#define callrpc_private ((struct callrpc_private_s *)RPC_THREAD_VARIABLE(callrpc_private_s))
+#else
+static struct callrpc_private_s *callrpc_private;
+#endif
-int callrpc (const char *host, const u_long prognum,
- const u_long versnum, const u_long procnum,
- const xdrproc_t inproc, const char *in,
- const xdrproc_t outproc, char *out)
+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)
{
- register struct callrpc_private *crp = callrpc_private;
- struct sockaddr_in server_addr;
- enum clnt_stat clnt_stat;
- struct hostent *hp;
- struct timeval timeout, tottimeout;
+ 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 *) 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 == 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->valid && crp->oldprognum == prognum
- && crp->oldversnum == versnum &&
- strcmp(crp->oldhost, host) == 0)
+ if (crp->client)
{
- /* reuse old client */
- } else {
- crp->valid = 0;
- (void) close(crp->socket);
- crp->socket = RPC_ANYSOCK;
- if (crp->client) {
- clnt_destroy(crp->client);
- crp->client = NULL;
- }
- if ((hp = gethostbyname(host)) == NULL)
- return ((int) RPC_UNKNOWNHOST);
- timeout.tv_usec = 0;
- timeout.tv_sec = 5;
- bcopy(hp->h_addr, (char *) &server_addr.sin_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) rpc_createerr.cf_stat);
- crp->valid = 1;
- crp->oldprognum = prognum;
- crp->oldversnum = versnum;
- (void) strcpy(crp->oldhost, host);
+ 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;
+}
+
+#ifdef _RPC_THREAD_SAFE_
+void
+__rpc_thread_clnt_cleanup (void)
+{
+ struct callrpc_private_s *rcp = RPC_THREAD_VARIABLE(callrpc_private_s);
+
+ if (rcp) {
+ if (rcp->client)
+ CLNT_DESTROY (rcp->client);
+ free (rcp);
}
- 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);
}
+#endif /* _RPC_THREAD_SAFE_ */
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