Update.cvs/libc-ud-970723

1997-07-24 03:14  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-deps.c: Complete rewrite to handle DT_AUXILIARY correctly.

	* inet/Makefile (tests): Add htontest.
	* inet/htontest.c: New file.

	* inet/netinet/in.h: Cleanup optimization of ntoh/hton functions
	when they are no noops.
	* sysdeps/alpha/htonl.S: Don't define __ protected names.
	* sysdeps/alpha/htons.S: Likewise.
	* sysdeps/generic/htonl.c: Likewise.
	* sysdeps/generic/htons.c: Likewise.
	* sysdeps/i386/htonl.S: Likewise.
	* sysdeps/i386/htons.S: Likewise.
	* sysdeps/i386/i486/htonl.S: Likewise.
	* sysdeps/vax/htonl.s: Likewise.
	* sysdeps/vax/htons.s: Likewise.

	* string/Makefile (headers): Add byteswap.h and bits/byteswap.h.
	* string/byteswap.h: New file.
	* sysdeps/generic/bits/byteswap.h: New file.
	* sysdeps/i386/bits/byteswap.h: New file.
	* sysdeps/generic/bits/htontoh.h: Removed.
	* sysdeps/i386/bits/htontoh.h: Removed.

	* misc/search.h: General cleanup.  Don't define reentrant hsearch
	functions uless __USE_GNU.

	* nss/nsswitch.c: Pretty print.

	* sunrpc/clnt_udp.c (clntudp_call): Initialize outlen to prevent
	warning.

	* sysdeps/unix/i386/sysdep.h (DO_CALL): Use lcall, binutils have
	been fixed meanwhile.
	Reported by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1997-07-24 00:53  Philip Blundell  <Philip.Blundell@pobox.com>

	* db/hash/hash.c (init_hash): Only use statbuf.st_blksize if it
	exists for this port.

1997-07-24 00:12  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/standalone/arm/bits/errno.h (ESTALE): Add.

1997-07-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/argp.texi (Argp Option Vectors): Use @minus, not @math,
	to format a proper minus sign.

1997-07-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/fraiseexcpt.c: Don't handle FE_INEXACT
	specially, the standard doesn't require it.

	* math/test-fenv.c (test_exceptions): Add IGNORE_INEXACT argument,
	if non-zero then don't test inexact flag.  Callers changed.
	(set_single_exc): Ignore inexact flag if underflow or overflow
	exception is raised.

1997-07-23 05:10  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sys/fsuid.h: New file.
	Provided by Michael Deutschmann <ldeutsch@mail.netshop.net>.
	* sysdeps/unix/sysv/linux/Makefile (headers): Add sys/fsuid.h.
	* sysdeps/unix/sysv/linux/Dist: Add sys/fsuid.h.

1997-07-16 10:09  Fila Kolodny  <fila@ibi.com>

	* resolv/gethnamaddr.c: Define MAXHOSTNAMELEN as 256, since RFC 1034
	and 1035 state that a fully qualified domain name cannot exceed 255
	octets in length.
	* resolv/nss_dns/dns-host.c: Likewise.

1997-07-22 09:54  H.J. Lu   <hjl@gnu.ai.mit.edu>

	* inet/netinet/in.h (htons): Fix typos.

	* sysdeps/i386/bits/htontoh.h (__ntohs): Return the value.

1997-07-22 11:47  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nsswitch.c (nss_lookup_function): Include function.def, not
	functions.def.
	Patch by Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de>.

3 files changed, 84 insertions, 29 deletions

diff --git a/inet/Makefile b/inet/Makefile
index 47570f131c..0237d0b45d 100644
--- a/inet/Makefile
+++ b/inet/Makefile
@@ -46,6 +46,8 @@ routines := htonl htons		\
 	    getaliasent_r getaliasent getaliasname getaliasname_r \
 	    in6_addr getnameinfo if_index
 
+tests := htontest
+
 # No warnings about losing BSD code.
 CFLAGS-rcmd.c = -w
 CFLAGS-rexec.c = -w
diff --git a/inet/htontest.c b/inet/htontest.c
new file mode 100644
index 0000000000..87167b44a3
--- /dev/null
+++ b/inet/htontest.c
@@ -0,0 +1,70 @@
+/* Test hton/ntoh functions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <endian.h>
+#include <stdio.h>
+#include <netinet/in.h>
+
+#if BYTE_ORDER == BIG_ENDIAN
+# define TEST(orig, swapped, fct) \
+  if ((fct (orig)) != (orig)) {						      \
+    printf ("Failed for %s -> %#x\n", #fct "(" #orig ")", fct (orig));	      \
+    result = 1;								      \
+  }
+#elif BYTE_ORDER == LITTLE_ENDIAN
+# define TEST(orig, swapped, fct) \
+  if ((fct (orig)) != (swapped)) {					      \
+    printf ("Failed for %s -> %#x\n", #fct "(" #orig ")", fct (orig));	      \
+    result = 1;								      \
+  }
+#else
+# error "Bah, what kind of system do you use?"
+#endif
+
+u_int32_t lo = 0x67452301;
+u_int16_t foo = 0x1234;
+
+int
+main (void)
+{
+  int result = 0;
+
+  TEST (0x67452301, 0x01234567, htonl);
+  TEST (0x67452301, 0x01234567, (htonl));
+  TEST (0x67452301, 0x01234567, ntohl);
+  TEST (0x67452301, 0x01234567, (ntohl));
+
+  TEST (lo, 0x01234567, htonl);
+  TEST (lo, 0x01234567, (htonl));
+  TEST (lo, 0x01234567, ntohl);
+  TEST (lo, 0x01234567, (ntohl));
+
+  TEST (0x1234, 0x3412, htons);
+  TEST (0x1234, 0x3412, (htons));
+  TEST (0x1234, 0x3412, ntohs);
+  TEST (0x1234, 0x3412, (ntohs));
+
+  TEST (foo, 0x3412, htons);
+  TEST (foo, 0x3412, (htons));
+  TEST (foo, 0x3412, ntohs);
+  TEST (foo, 0x3412, (ntohs));
+
+  return result;
+}
diff --git a/inet/netinet/in.h b/inet/netinet/in.h
index ac0d167287..d2a366b51c 100644
--- a/inet/netinet/in.h
+++ b/inet/netinet/in.h
@@ -185,9 +185,9 @@ struct sockaddr_in
 struct sockaddr_in6
   {
     __SOCKADDR_COMMON (sin6_);
-    u_int16_t		sin6_port;      /* Transport layer port # */
-    u_int32_t		sin6_flowinfo;  /* IPv6 flow information */
-    struct in6_addr	sin6_addr;      /* IPv6 address */
+    u_int16_t sin6_port;	/* Transport layer port # */
+    u_int32_t sin6_flowinfo;	/* IPv6 flow information */
+    struct in6_addr sin6_addr;	/* IPv6 address */
   };
 
 /* IPv6 multicast request.  */
@@ -197,7 +197,7 @@ struct ipv6_mreq
     struct in6_addr ipv6mr_multiaddr;
 
     /* local IPv6 address of interface */
-    int		ipv6mr_ifindex;
+    int ipv6mr_ifindex;
   };
 
 /* Get system-specific definitions.  */
@@ -210,18 +210,17 @@ struct ipv6_mreq
    this was a short-sighted decision since on different systems the types
    may have different representations but the values are always the same.  */
 
-extern u_int32_t __ntohl __P ((u_int32_t __netlong));
 extern u_int32_t ntohl __P ((u_int32_t __netlong));
-extern u_int16_t __ntohs __P ((u_int16_t __netshort));
 extern u_int16_t ntohs __P ((u_int16_t __netshort));
-extern u_int32_t __htonl __P ((u_int32_t __hostlong));
 extern u_int32_t htonl __P ((u_int32_t __hostlong));
-extern u_int16_t __htons __P ((u_int16_t __hostshort));
 extern u_int16_t htons __P ((u_int16_t __hostshort));
 
 #include <endian.h>
 
-#if __BYTE_ORDER == __BIG_ENDIAN
+/* Get machine dependent optimized versions of byte swapping functions.  */
+#include <bits/byteswap.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN && defined __OPTIMIZE__
 /* The host byte order is the same as network byte order,
    so these functions are all just identity.  */
 # define ntohl(x)	(x)
@@ -230,26 +229,10 @@ extern u_int16_t htons __P ((u_int16_t __hostshort));
 # define htons(x)	(x)
 #else
 # if __BYTE_ORDER == __LITTLE_ENDIAN && defined __OPTIMIZE__
-#  define ntohl(x)	(__builtin_constant_p (x)			  \
-			 ? __constant_htontohl (x) : __ntohl (x))
-#  define ntohs(x)	(__builtin_constant_p (x)			  \
-			 ? __constant_htontohs (x) : __ntohs (x))
-#  define htonl(x)	(__builtin_constant_p (x)			  \
-			 ? __constant_htontohl (x) : __htonl (x))
-#  define htons(x)	(__builtin_constant_p (x)			  \
-			 ? __constant_htontohl (x) : __htonl (x))
-
-#  define __constant_htontohl(x) \
-	((((x) & 0xff000000) >> 24) | \
-	 (((x) & 0x00ff0000) >>  8) | \
-	 (((x) & 0x0000ff00) <<  8) | \
-	 (((x) & 0x000000ff) << 24))
-#  define __constant_htontohs(x) \
-	((((x) & 0x0000ff00) >>  8) | \
-	 (((x) & 0x000000ff) << 8))
-
-/* Now get machine dependent optimized versions for the real work.  */
-#  include <bits/htontoh.h>
+#  define ntohl(x)	__bswap_32 (x)
+#  define ntohs(x)	__bswap_16 (x)
+#  define htonl(x)	__bswap_32 (x)
+#  define htons(x)	__bswap_16 (x)
 # endif
 #endif