diff options
Diffstat (limited to 'libc/inet/rpc/getrpcport.c')
| -rw-r--r-- | libc/inet/rpc/getrpcport.c | 60 |
1 files changed, 41 insertions, 19 deletions
diff --git a/libc/inet/rpc/getrpcport.c b/libc/inet/rpc/getrpcport.c index 295c23702..d3c4bb484 100644 --- a/libc/inet/rpc/getrpcport.c +++ b/libc/inet/rpc/getrpcport.c @@ -1,6 +1,7 @@ /* @(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC */ -#define __FORCE_GLIBC -#include <features.h> +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)getrpcport.c 1.3 87/08/11 SMI"; +#endif /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape @@ -8,23 +9,23 @@ * 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 @@ -34,22 +35,43 @@ * Copyright (c) 1985 by Sun Microsystems, Inc. */ +#define __FORCE_GLIBC +#include <features.h> + +#include <alloca.h> +#include <errno.h> #include <stdio.h> -#include <rpc/rpc.h> #include <netdb.h> -#include <sys/socket.h> +#include <string.h> +#include <rpc/rpc.h> +#include <rpc/clnt.h> #include <rpc/pmap_clnt.h> +#include <sys/socket.h> -extern int getrpcport (const char * host, u_long prognum, - u_long versnum, u_int proto) +int +getrpcport (const char *host, u_long prognum, u_long versnum, u_int proto) { - struct sockaddr_in addr; - struct hostent *hp; + struct sockaddr_in addr; + 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 + || hp == NULL) + 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; - return (pmap_getport(&addr, prognum, versnum, proto)); + memcpy ((char *) &addr.sin_addr, hp->h_addr, hp->h_length); + addr.sin_family = AF_INET; + addr.sin_port = 0; + return pmap_getport (&addr, prognum, versnum, proto); } |