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-rw-r--r--sunrpc/getrpcport.c33
1 files changed, 25 insertions, 8 deletions
diff --git a/sunrpc/getrpcport.c b/sunrpc/getrpcport.c
index 9b13bac6b0..3e94dbbf7b 100644
--- a/sunrpc/getrpcport.c
+++ b/sunrpc/getrpcport.c
@@ -9,23 +9,23 @@ static char sccsid[] = "@(#)getrpcport.c 1.3 87/08/11 SMI";
* 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
@@ -35,19 +35,36 @@ static char sccsid[] = "@(#)getrpcport.c 1.3 87/08/11 SMI";
* Copyright (c) 1985 by Sun Microsystems, Inc.
*/
+#include <alloca.h>
+#include <errno.h>
#include <stdio.h>
#include <rpc/rpc.h>
#include <netdb.h>
#include <sys/socket.h>
+int
getrpcport(host, prognum, versnum, proto)
char *host;
{
struct sockaddr_in addr;
- struct hostent *hp;
+ struct hostent hostbuf, *hp;
+ size_t buflen;
+ char *buffer;
+ int herr;
+
+ buflen = 1024;
+ buffer = __alloca (buflen);
+ while (__gethostbyname_r (host, &hostbuf, buffer, buflen, &hp, &herr)
+ < 0)
+ if (herr != NETDB_INTERNAL || errno != ERANGE)
+ return 0;
+ else
+ {
+ /* Enlarge the buffer. */
+ buflen *= 2;
+ buffer = __alloca (buflen);
+ }
- if ((hp = gethostbyname(host)) == NULL)
- return (0);
bcopy(hp->h_addr, (char *) &addr.sin_addr, hp->h_length);
addr.sin_family = AF_INET;
addr.sin_port = 0;