diff options
Diffstat (limited to 'sunrpc/getrpcport.c')
| -rw-r--r-- | sunrpc/getrpcport.c | 33 |
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; |