glibc/inet/ether_ntoh.c
Ulrich Drepper 84384f5b6a update from main archive 961119
Wed Nov 20 02:04:11 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sigsuspend.c: Make sigsuspend a weak
	alias of __sigsuspend.

	* grp/grp.h: Correct comment about POSIX compliance.
	* pwd/pwd.h: Likewise.

	* login/utmp.h: Update copyright and pretty-print prototypes.
	* sysdeps/generic/paths.h: Add _PATH_LASTLOG, _PATH_UTMP and
	_PATH_WTMP from utmpbits.h.
	* sysdeps/unix/sysv/linux/paths.h: Likewise.
	* sysdeps/generic/utmpbits.h: Remove here.
	* sysdeps/gnu/utmpbits.h: Likewise.

	* misc/sys/uio.h: Place __BEGIN_DECLS correctly.
	Pretty-print prototypes.

	* sysdeps/unix/sysv/linux/sparc/clone.S: New file.  Taken from
	LinuxThreads-0.5.

Tue Nov 19 13:43:07 1996  Richard Henderson  <rth@tamu.edu>

	* inet/ether_hton.c: Include <string.h>.
	* inet/ether_ntoh.c: Likewise.
	* inet/rexec.c: Get errno, index, getpass, getlogin from headers.
	* misc/search.h: Fix hcreate_r argument type (unsigned -> size_t).

	* misc/sys/cdefs.h: Change __long_double_t definition from typedef
	to define.  Jim Nance reports problems building XEmacs otherwise.

	* resolv/gethnamaddr.c: Protect h_errno redefinition.
	* resolv/getnetnamadr.c: Likewise.
	* resolv/herror.c: Likewise.

	* sysdeps/generic/sigset.h (__SIGSETFN): Operator ## doesn't work
	with -traditional.  Reported by Eric Youngdale.  While we're at this,
	don't do error checking in the __ functions.  This is consistent
	with the sysv4 definitions and seems Right.
	* signal/signal.h: Don't __OPTIMIZE__ sigops to __ versions.  Add
	prototype for __sigsuspend.
	* sysdeps/posix/sigblock.c: Optimize sigmask <-> sigset_t conversions
	for sigset_t == unsigned long.  De-ansidecl-ify.  Reformat copyright.
	* sysdeps/posix/sigpause.c: Likewise.
	* sysdeps/posix/sigsetmask.c: Likewise.
	* sysdeps/posix/sigvec.c: Likewise.
	* sysdeps/posix/sigintr.c: Reformat copyright.
	* sysdeps/posix/signal.c: Check signal number out of range since
	__sigismember doesn't anymore.  Reformat copyright.
	* sysdeps/posix/sigwait.c: Use __ versions of sigfillset, sigismember,
	sigdelset, sigaction, and sigsuspend.

	* stdlib/drand48-iter.c (__drand48_iterate): Cast state fragments
	to the wider type before shifting.

	* sysdeps/alpha/bsd-_setjmp.S: Silence assembler warning "$at used
	without .set noat" in profiling hook.
	* sysdeps/alpha/bsd-setjmp.S: Likewise.
	* sysdeps/alpha/htonl.S: Likewise.
	* sysdeps/alpha/htons.S: Likewise.
	* sysdeps/alpha/s_copysign.S: Likewise.
	* sysdeps/alpha/setjmp.S: Likewise.
	* sysdeps/alpha/stpcpy.S: Likewise.
	* sysdeps/alpha/strcat.S: Likewise.
	* sysdeps/alpha/strcpy.S: Likewise.
	* sysdeps/alpha/strncat.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/brk.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/llseek.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sigsuspend.S: Likewise.  Rename
	function to __sigsuspend and add weak alias.
	* sysdeps/unix/sysv/linux/alpha/syscall.S: Likewise.  Add missing END.

	* sysdeps/alpha/w_sqrt.S: Define _ERRNO_H so <errnos.h> defines EDOM.

	* sysdeps/unix/execve.S: Match PSEUDO_END symbol with the symbol
	SYSCALL__ actually generated.

	* sysdeps/unix/sysv/linux/errnos.h [_LIBC_REENTRANT]: Reflexively
	#define __set_errno, as several imported subsystems (eg. BIND) check
	that the symbol is defined.

	* sysdeps/unix/sysv/linux/getsysstats.c: Include <alloca.h>.

	* sysdeps/alpha/memcpy.S: Temporarily remove until I can find a bug
	that manifests in GCC.

Tue Nov 19 11:10:05 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* sysdeps/posix/writev.c (writev): COUNT parm is now int.
	* sysdeps/posix/readv.c (readv): Likewise.

Tue Nov 19 15:28:29 1996  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nss_dns/dns-network.c: Change return type of all functions
	to enum nss_status.
	Reported by NIIBE Yutaka.
	* nss/nss_dns/dns-host.c: Update copyright.

Fri Nov 15 20:16:38 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* config.make.in: Remove definition of top_absdir.
	* configure.in: Likewise. Use $(..) instead.
	* Makerules (make-link): Use $(..) to find rellns-sh script.

Sat Nov 16 15:52:29 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/nss.texi (Name Service Switch): Fix reference to
	`frobnicate'.

Fri Nov 15 22:08:33 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
	sys/mtio.h.

Mon Nov 18 05:51:13 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/waitstatus.h (__WIFSIGNALED): Rename local
	variable from __stat to __status to prevent shadowing.
	* sunrpc/rpc/clnt.h (clntudp_create, clntudp_bufcreate): Likewise
	for parameter __wait.
	Reported by NIIBE Yutaka.

Mon Nov 18 02:05:38 1996  Ulrich Drepper  <drepper@cygnus.com>

	* misc/regexp.c: New file.  Implementation of obsolete interface
	to regular expression matcher (required in XPG4.2).
	* misc/regexp.h: New file.  Header for above.
	* misc/Makefile (headers): Add regexp.h.
	(routines): Add regexp.c.
	Update copyright.

Sun Nov 17 21:50:24 1996  Andreas Jaeger  <aj@arthur.pfalz.de>

	* stdlib/tst-strtod.c (main): Add arguments for main.
	* stdlib/tst-strtol.c (main): Likewise.

Sun Nov 17 21:15:05 1996  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Substitute libc_cv_slibdir and libc_cv_sysconfdir
	in output files.
	* sysdepes/unix/sysv/linux/configure: Define libc_cv_slibdir to /lib
	and sysconfdir to /etc if $prefix is /usr.
	* config.make.in: Add slibdir, sysconfdir and BASH to be replaced.

	* elf/Makefile ($(objpfx)ldd): Install ldd.bash.in if
	$(have-bash2) is yes.
	* elf/ldd.bash.in: Add copyright and various cleanups.
	* elf/ldd.sh.in: Likewise.

	Implement RTLD_NEXT.
	* elf/dlfcn.h: Define RTLD_NEXT.
	* elf/dl-deps.c: Build second searchlist which contains duplicates.
	* elf/dl-lookup.c (_dl_lookup_symbol_skip): New function.  Used
	for RTLD_NEXT lookup.
	Rewrite _dl_lookup_symbol to put common parts for both lookup
	functions in a separate function.
	* elf/dlsym.c: Handle RTLD_NEXT by calling _dl_lookup_symbol_skip.
	* elf/link.h (struct link_map): Add l_dupsearchlist and
	l_ndupsearchlist.
	Add prototype for _dl_lookup_symbol_skip.

	* sunrpc/Makefile (rpcsvc): Add rusers.
	* sunrpc/rpcsvc/rnusers.x: Remove.  Obsolteted by rusers.x.
	* sunrpc/rpcsvc/rusers.x: New file.

Sun Nov 17 04:24:35 1996  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/vfprintf.c [USE_IN_LIBIO] (buffered_vfprintf): Call
	__libc_lock_init for local lock.
	Reported by a sun <asun@zoology.washington.edu>.
	[!USE_IN_LIBIO] (PAD): Optimize a bit.
1996-11-20 03:45:51 +00:00

90 lines
2.6 KiB
C

/* Copyright (C) 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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 <netinet/ether.h>
#include <netinet/if_ether.h>
#include <string.h>
#include "../nss/nsswitch.h"
/* Because the `ethers' lookup does not fit so well in the scheme so
we define a dummy struct here which helps us to use the available
functions. */
struct etherent
{
const char *e_name;
struct ether_addr e_addr;
};
/* Type of the lookup function we need here. */
typedef int (*lookup_function) (const struct ether_addr *, struct etherent *,
char *, int);
/* The lookup function for the first entry of this service. */
extern int __nss_ethers_lookup (service_user **nip, const char *name,
void **fctp);
int
ether_ntohost (char *hostname, const struct ether_addr *addr)
{
static service_user *startp = NULL;
static lookup_function start_fct;
service_user *nip;
lookup_function fct;
int no_more;
enum nss_status status = NSS_STATUS_UNAVAIL;
struct etherent etherent;
if (startp == NULL)
{
no_more = __nss_ethers_lookup (&nip, "getntohost_r", (void **) &fct);
if (no_more)
startp = (service_user *) -1;
else
{
startp = nip;
start_fct = fct;
}
}
else
{
fct = start_fct;
no_more = (nip = startp) == (service_user *) -1;
}
while (no_more == 0)
{
char buffer[1024];
status = (*fct) (addr, &etherent, buffer, sizeof buffer);
no_more = __nss_next (&nip, "getntohost_r", (void **) &fct, status, 0);
}
if (status == NSS_STATUS_SUCCESS)
/* XXX This is a potential cause of trouble because the size of
the HOSTNAME buffer is not known but the interface does not
provide this information. */
strcpy (hostname, etherent.e_name);
return status == NSS_STATUS_SUCCESS ? 0 : -1;
}