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Diffstat (limited to 'sunrpc/clnt_simp.c')
-rw-r--r--sunrpc/clnt_simp.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/sunrpc/clnt_simp.c b/sunrpc/clnt_simp.c
index e289b3400d..dd2ae75f1e 100644
--- a/sunrpc/clnt_simp.c
+++ b/sunrpc/clnt_simp.c
@@ -38,6 +38,8 @@ static char sccsid[] = "@(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
+#include <alloca.h>
+#include <errno.h>
#include <stdio.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
@@ -59,7 +61,7 @@ callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
register struct callrpc_private *crp = callrpc_private;
struct sockaddr_in server_addr;
enum clnt_stat clnt_stat;
- struct hostent *hp;
+ struct hostent hostbuf, *hp;
struct timeval timeout, tottimeout;
if (crp == 0) {
@@ -77,6 +79,10 @@ callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
&& strcmp(crp->oldhost, host) == 0) {
/* reuse old client */
} else {
+ size_t buflen;
+ char *buffer;
+ int herr;
+
crp->valid = 0;
if (crp->socket != RPC_ANYSOCK)
{
@@ -87,8 +93,20 @@ callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
clnt_destroy(crp->client);
crp->client = NULL;
}
- if ((hp = gethostbyname(host)) == NULL)
- return ((int) RPC_UNKNOWNHOST);
+
+ buflen = 1024;
+ buffer = __alloca (buflen);
+ while (__gethostbyname_r (host, &hostbuf, buffer, buflen,
+ &hp, &herr) < 0)
+ 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;
bcopy(hp->h_addr, (char *)&server_addr.sin_addr, hp->h_length);