update from main archive 961201cvs/libc-961202

Mon Dec  2 03:59:38 1996  Ulrich Drepper  <drepper@cygnus.com>

	* grp/initgroups.c: Update and reformat copyright.
	Use __getgrent_r instead of getgrent.

	* inet/rcmd.c: Update and reformat copyright.
	Use __gethostbyname_r instead of gethostbyname.
	* inet/rexec.c: Likewise.

	* intl/finddomain.c: Correct comment about CEN sponsor and revision.
	* locale/findlocale.c: Likewise.
	* intl/l10nflist.c: Correct handling of CEN sponsor and revision.
	* locale/Makefile (CPPFLAGS): Add definition of LOCALEDIR.
	* locale/setlocale.c (setlocale): Correctly split value of
	LOCALE_PATH.
	* locale/programs/localedef.c: Use LOCALEDIR not LOCALE_PATH to
	find output directory.

	* nss/getXXbyYY.c [NEED_H_ERRNO]: Before enlarging buffer test
	h_errno_tmp variable.
	Save error value from being changed during `free' call.
	* nss/getXXent.c: Likewise.

	* nss/nss_files/files-XXX.c: Set h_errno variable to NETDB_INTERNAL
	before returning ERANGE error.

	* posix/glob.c: Use getlogin_r and getpwnam_r function when available
	or in GNU libc.

	* pwd/getpw.c: Use getpwuid_r instead of getpwuid.

	* sunrpc/clnt_gen.c: Use gethostbyname_r and getprotobyname_r.
	* sunrpc/clnt_simp.c: Likewise.
	* sunrpc/getrpcport.c: Likewise.
	* sysdeps/unix/sysv/linux/gethostid.c: Likewise.

	* posix/getconf.c: Treat _SC_UNIT_MAX and _SC_ULONG_MAX separately
	since the value might be outsode the range of the `long int'.
	Print string `undefined' when a value is undefined.

	* stdlib/l64a.c: Return correct pointer.
	Patch by NIIBE Yutaka <gniibe@mri.co.jp>.

	* string/Makefile (routines): Add argz-addsep.
	* string/argz-addsep.c: New file.
	* string/argz.h: Add prototypes for argz_add_sep.

	* string/argz-ctsep.c: Prevent memory leak.

	* string/strcoll.c: Correct typo in comment.

Sat Nov 30 02:53:59 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sys/serial.h: Removed again.  The file is
	not general enough to be part of the libc.
	* sysdeps/unix/sysv/linux/Dist: Remove sys/serial.h.
	* sysdeps/unix/sysv/linux/Makefile: Don't install sys/serial.h.

Thu Nov 28 20:04:41 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* login/Makefile: Fix typo.

	* nss/Makefile (generated): Filter out db-alias.c.

Thu Nov 28 14:44:01 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* time/Makefile (echo-zonenames): Don't depend on non-existing
	target `zonenames'.

Thu Nov 28 12:34:05 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* link.h: New file.
	* nss/nsswitch.c: Use it.

	* printf.h: Fix file name.
	* stdlib/strfmon.c: Use it.

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;