Update.

1997-05-29 12:48  Ulrich Drepper  <drepper@cygnus.com>

	* io/ftw.c: Complete rewrite.  Add implementation of `nftw'.
	* io/ftw.h: Update for new implementation and XPG4.2.

	* login/Makefile: Update for UTMP daemon implementation.

	Update resolver code to bind-4.9.6-T1A.
	* resolv/Banner: Update.
	* nss/digits_dots.c: Adapt text address matching to T1A.
	* nss/nss_files/files-hosts.c: Always use inet_pton.
	* resolv/base64.c (b64_pton): Follow T1A but don't use this code since
	it would lead to warnings.
	* resolv/gethnamaddr.c (getanswer): Test host name for maximal length
	at several places.
	* resolv/inet_net_pton.c (inet_net_pton_ipv4): Correct typo in comment.
	* resolv/res_comp.c (dn_expand): Check for overflow.
	(dn_comp): Likewise.
	* resolv/res_debug.c (precsize_aton): Better implementation.
	* resolv/res_init.c (res_init): Make `buf' of size MAXDNAME.
	* resolv/res_send.c (res_send): Check for overflow in descriptor set.
	* resolv/nss_dns/dns-host.c (getanswer_r): Test host name for maximal
	length at several places.

1997-05-29 12:51  Mark Kettenis  <kettenis@phys.uva.nl>

	* login/utmp-private.h (struct utfuncs): Add one more parameter
	to updwtmp function.
	Declare all three function jump tables.
	* login/utmp.h: Declare __utmpname.
	* login/getutent_r.c: Remove db backend and provide support for
	utmpd backend.
	* login/login.c: Use `updwtmp' function insteead of writing the
	record ourself.
	* login/logwtmp.c: Move `updwtmp' function to...
	* login/updwtmp.c: ...here.  New file.
	* login/utmp_db.h: Removed.
	* login/utmp_file.c: Add updwtmp function to write to file.
	* login/utmp_daemon.c: New file.  Daemon backend.
	* login/utmpname.c: New file.  Implementation of utmpname function.
	* login/utmpdump.c: New file.  Tool to dump utmp-like files.
	* login/utmpd/connection.c: New file.
	* login/utmpd/database.c: New file.
	* login/utmpd/error.c: New file.
	* login/utmpd/request.c: New file.
	* login/utmpd/utmpd-private.h: New file.
	* login/utmpd/utmpd.c: New file.
	* login/utmpd/utmpd.h: New file.
	* login/utmpd/xtmp.c: New file.
	* login/utmpd/xtmp.h: New file.

1997-05-29 12:28  Jim Meyering  <meyering@eng.ascend.com>

	* time/strftime.c: Correct/normalize indentation in cpp directives.

1997-05-28 20:43  Philip Blundell  <pjb27@cam.ac.uk>

	* nis/nis_error.c: Include <string.h> to fix warning.
	* nis/nis_print.c: Likewise.
	* nis/nss_nisplus/nisplus-hosts.c: Arg 3 of map_v4v6_hostent
	is int* not size_t*.

1997-05-28 21:56  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/cmathcalls.h: Correct typo in comment.

	* inet/netinet/icmp6.h: Include <netinet/in.h> for in6_addr.

	* sysdeps/unix/sysv/linux/netinet/ip_fw.h: Include <net/if.h> for
	IFNAMSIZ.

	* sysdeps/unix/sysv/linux/net/ppp_defs.h: Include <time.h> for
	time_t.

	* login/pty.h: Include <ioctl-types.h> for definition of struct
	winsize.

	* misc/regexp.h (compile): Correct typo.

	* argp/argp.h: Put extern before __const in defintion of
	argp_program_bug_address.

1997-05-29 00:20  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/wordsize-32/inttypes.h: Correct names of unsigned fast
	and least types.  Correct names of ?INT_FAST*_{MIN,MAX} macros.
	* sysdeps/wordsize-64/inttypes.h: Likewise.
	Reported by Andreas Jaeger <aj@arthur.rhein-neckar.de>.

1997-05-28 22:51  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/Makefile (make-ioctls-CFLAGS): Use generic
	ttydefaults.h file instead of non-existing version in termios/sys.
	Reported by Zack Weinberg <zack@rabi.phys.columbia.edu>.

	* time/strptime.c (strptime_internal, case 'Y'): Restrict year
	number to four digits and to representable range for 4 byte time_t
	values.
	Patch by H.J. Lu <hjl@lucon.org>.

1997-05-28 18:19  Philip Blundell  <pjb27@cam.ac.uk>

	* posix/execl.c: Include <alloca.h> to avoid warning.

1997-05-27 18:19  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/libm-test.c: Implement testing of inlined functions, make
	output nicer, update comments.

	* math/test-idouble.c: New file.  Frontend for double tests of
	inlined functions.
	* math/test-ildoubl.c: New file.  Frontend for long double tests of
	inlined functions.
	* math/test-ifloat.c: New file.  Frontend for float tests of
	inlined functions.

	* math/test-longdouble.c: Rename to...
	* math/test-ldouble.c: ...this.

	* math/Makefile: Add rules for new test programs, change rules for
	renaming of longdouble test.

1997-05-20 15:50  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sunrpc/rpc/svc.h (__dispatch_fn_t): New.
	(svc_register): Use __dispatch_fn_t in prototype.

1997-05-28 17:02  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/bzero.c (bzero): Fix typo.
	Patch by Witek Wnuk <spider@pest.waw.ids.edu.pl>.

1997-05-27 12:00  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/generic/vtimes.c: Use ISO C declaration style.

	* sysdeps/unix/bsd/ualarm.c: Include <unistd.h> for prototype.

	* sysdeps/generic/memccpy.c: Include <string.h> for prototype.

	* signal/tst-signal.c (handler): Correct function declaration to
	avoid warning.
	* stdlib/testsort.c (compare): Likewise.
	* string/tester.c: Likewise.

1997-05-27 14:16  Miles Bader  <miles@gnu.ai.mit.edu>

	* argp-help.c (argp_args_usage): Supply correct argp to filter_doc.

1997-05-27 17:51  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* db/hash/extern.h, db/hash/hash.c, db/hash/hash.h,
	db/hash/hash_log2.c: Rename __log2 to __hash_log2 to avoid clash
	with libm.

1997-05-27 14:47  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/e_atan2.c: Fix missing negate.  Use __m81_test
	instead of explicit comparisons.

1997-05-26 18:36  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* inet/netinet/icmp6.h: Remove use of <asm/bitops.h> which has no
	place in a generic header and is no user include file.

1 files changed, 454 insertions, 0 deletions

diff --git a/login/utmp_daemon.c b/login/utmp_daemon.c
new file mode 100644
index 0000000000..edaade1eff
--- /dev/null
+++ b/login/utmp_daemon.c
@@ -0,0 +1,454 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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 <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <utmp.h>
+
+#include "utmp-private.h"
+#include "utmpd/utmpd.h"
+
+#ifndef _LIBC
+#define __set_errno(val) errno = (val)
+#endif
+
+
+/* Descriptor for the socket.  */
+static int daemon_sock = INT_MIN;
+
+
+/* Functions defined here.  */
+static int setutent_daemon (int reset);
+static int getutent_r_daemon (struct utmp *buffer, struct utmp **result);
+static int getutid_r_daemon (const struct utmp *line, struct utmp *buffer,
+			     struct utmp **result);
+static int getutline_r_daemon (const struct utmp *id, struct utmp *buffer,
+			       struct utmp **result);
+static struct utmp *pututline_daemon (const struct utmp *utmp);
+static void endutent_daemon (void);
+static int updwtmp_daemon (const char *file, const struct utmp *utmp);
+
+/* Jump table for daemon functions.  */
+struct utfuncs __libc_utmp_daemon_functions =
+{
+  setutent_daemon,
+  getutent_r_daemon,
+  getutid_r_daemon,
+  getutline_r_daemon,
+  pututline_daemon,
+  endutent_daemon,
+  updwtmp_daemon
+};
+
+static int do_setutent (int sock);
+static int do_getutent (int sock, struct utmp *buffer);
+static int do_endutent (int sock);
+static int do_getutline (int sock, const struct utmp *line,
+			 struct utmp *buffer);
+static int do_getutid (int sock, const struct utmp *id,
+			    struct utmp *buffer);
+static int do_pututline (int sock, const struct utmp *utmp);
+static int do_updwtmp (int sock, const char *file,
+		       const struct utmp *utmp);
+
+static int open_socket (const char *name);
+static int send_request (int sock, const request_header *request,
+			 reply_header *reply);
+
+
+static int
+setutent_daemon (int reset)
+{
+  if (daemon_sock == INT_MIN)
+    {
+      daemon_sock = open_socket (_PATH_UTMPD_RW);
+      if (daemon_sock < 0)
+	{
+	  /* Hhm, read-write access did not work.  Try read-only.  */
+	  daemon_sock = open_socket (_PATH_UTMPD_RO);
+	  if (daemon_sock < 0)
+	    return 0;
+	}
+
+      /* Send request to the daemon.  */
+      if (do_setutent (daemon_sock) < 0)
+	return 0;
+    }
+  else if (reset)
+    {
+      /* Send request to the daemon.  */
+      if (do_setutent (daemon_sock) < 0)
+	return 0;
+    }
+
+  return 1;
+}
+
+
+static void
+endutent_daemon (void)
+{
+  if (daemon_sock >= 0)
+    {
+      /* Send request to the daemon.  */
+      do_endutent (daemon_sock);
+      close (daemon_sock);
+    }
+
+  daemon_sock = INT_MIN;
+}
+
+
+static int
+getutent_r_daemon (struct utmp *buffer, struct utmp **result)
+{
+  /* Open connection if not already done.  */
+  if (daemon_sock == INT_MIN)
+    setutent_daemon (1);
+
+  if (daemon_sock < 0)
+    {
+      /* Not available.  */
+      *result = NULL;
+      return -1;
+    }
+
+  /* Send request to the daemon.  */
+  if (do_getutent (daemon_sock, buffer) < 0)
+    {
+      *result = NULL;
+      return -1;;
+    }
+
+  *result = buffer;
+  return 0;
+}
+
+
+static int
+getutline_r_daemon (const struct utmp *line, struct utmp *buffer,
+		    struct utmp **result)
+{
+  if (daemon_sock < 0)
+    {
+      *result = NULL;
+      return -1;
+    }
+
+  /* Send request to the daemon.  */
+  if (do_getutline (daemon_sock, line, buffer) < 0)
+    {
+      *result = NULL;
+      return -1;;
+    }
+
+  *result = buffer;
+  return 0;
+}
+
+
+static int
+getutid_r_daemon (const struct utmp *id, struct utmp *buffer,
+		  struct utmp **result)
+{
+  if (daemon_sock < 0)
+    {
+      *result = NULL;
+      return -1;
+    }
+
+  /* Send request to the daemon.  */
+  if (do_getutid (daemon_sock, id, buffer) < 0)
+    {
+      *result = NULL;
+      return -1;
+    }
+
+  *result = buffer;
+  return 0;
+}
+
+
+static struct utmp *
+pututline_daemon (const struct utmp *utmp)
+{
+  if (daemon_sock == INT_MIN)
+    /* The connection is closed.  Open it again.  */
+    setutent_daemon (0);
+
+  if (daemon_sock < 0)
+    /* Something went wrong.  */
+    return NULL;
+
+  /* Send request to the daemon.  */
+  if (do_pututline (daemon_sock, utmp) < 0)
+    return NULL;
+
+  return (struct utmp *)utmp;
+}
+
+
+static int
+updwtmp_daemon (const char *file, const struct utmp *utmp)
+{
+  int sock;
+
+  /* Only try to open for both reading and writing.  */
+  sock = open_socket (_PATH_UTMPD_RW);
+  if (sock < 0)
+    return -1;
+
+  /* Send request to the daemon.  */
+  if (do_updwtmp (sock, file, utmp) < 0)
+    return -1;
+
+  close (sock);
+  return 0;
+}
+
+
+static int
+do_setutent (int sock)
+{
+  setutent_request request;
+  setutent_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (setutent_request);
+  request.header.type = UTMPD_REQ_SETUTENT;
+  strncpy (request.file, __libc_utmp_file_name, sizeof request.file);
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (setutent_reply);
+  reply.header.type = UTMPD_REQ_SETUTENT;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+
+  return reply.result;
+}
+
+static int
+do_getutent (int sock, struct utmp *buffer)
+{
+  getutent_request request;
+  getutent_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (getutent_request);
+  request.header.type = UTMPD_REQ_GETUTENT;
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (getutent_reply);
+  reply.header.type = UTMPD_REQ_GETUTENT;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+  else
+    memcpy (buffer, &reply.entry, sizeof (struct utmp));
+
+  return reply.result;
+}
+
+static int
+do_endutent (int sock)
+{
+  endutent_request request;
+  endutent_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (endutent_request);
+  request.header.type = UTMPD_REQ_ENDUTENT;
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (endutent_reply);
+  reply.header.type = UTMPD_REQ_ENDUTENT;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+
+  return reply.result;
+}
+
+static int
+do_getutline (int sock, const struct utmp *line, struct utmp *buffer)
+{
+  getutline_request request;
+  getutline_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (getutline_request);
+  request.header.type = UTMPD_REQ_GETUTLINE;
+  memcpy (&request.line, line, sizeof (struct utmp));
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (getutline_reply);
+  reply.header.type = UTMPD_REQ_GETUTLINE;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+  else
+    memcpy (buffer, &reply.entry, sizeof (struct utmp));
+
+  return reply.result;
+}
+
+static int
+do_getutid (int sock, const struct utmp *id, struct utmp *buffer)
+{
+  getutid_request request;
+  getutid_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (getutid_request);
+  request.header.type = UTMPD_REQ_GETUTID;
+  memcpy (&request.id, id, sizeof (struct utmp));
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (getutid_reply);
+  reply.header.type = UTMPD_REQ_GETUTID;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+  else
+    memcpy (buffer, &reply.entry, sizeof (struct utmp));
+
+  return reply.result;
+}
+
+static int
+do_pututline (int sock, const struct utmp *utmp)
+{
+  pututline_request request;
+  pututline_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (pututline_request);
+  request.header.type = UTMPD_REQ_PUTUTLINE;
+  memcpy (&request.utmp, utmp, sizeof (struct utmp));
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (pututline_reply);
+  reply.header.type = UTMPD_REQ_PUTUTLINE;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+
+  return reply.result;
+}
+
+static int
+do_updwtmp (int sock, const char *file, const struct utmp *utmp)
+{
+  updwtmp_request request;
+  updwtmp_reply reply;
+
+  request.header.version = UTMPD_VERSION;
+  request.header.size = sizeof (updwtmp_request);
+  request.header.type = UTMPD_REQ_UPDWTMP;
+  strncpy (request.file, file, sizeof request.file);
+  memcpy (&request.utmp, utmp, sizeof (struct utmp));
+
+  reply.header.version = UTMPD_VERSION;
+  reply.header.size = sizeof (updwtmp_reply);
+  reply.header.type = UTMPD_REQ_UPDWTMP;
+
+  if (send_request (sock, &request.header, &reply.header) < 0)
+    return -1;
+
+  if (reply.result < 0)
+    __set_errno (reply.errnum);
+
+  return reply.result;
+}
+
+
+/* Create a socket connected to NAME.  */
+static int
+open_socket (const char *name)
+{
+  struct sockaddr_un addr;
+  int sock;
+
+  sock = socket (PF_UNIX, SOCK_STREAM, 0);
+  if (sock < 0)
+    return -1;
+
+  addr.sun_family = AF_UNIX;
+  strcpy (addr.sun_path, name);
+  if (connect (sock, (struct sockaddr *) &addr, sizeof (addr)) < 0)
+    {
+      close (sock);
+      return -1;
+    }
+
+  return sock;
+}
+
+/* Send REQUEST to SOCK, and wait for reply.  Returns 0 if successful,
+   storing the reply in REPLY, and -1 if not.  */
+static int
+send_request (int sock, const request_header *request,
+	      reply_header *reply)
+{
+  reply_header header;
+  ssize_t nbytes;
+
+  nbytes = write (sock, request, request->size);
+  if (nbytes != (ssize_t) request->size)
+    return -1;
+
+  nbytes = read (sock, &header, sizeof (reply_header));
+  if (nbytes != sizeof (reply_header))
+    return -1;
+
+  if (reply->version != header.version
+      || reply->size != header.size
+      || reply->type != header.type)
+    return -1;
+
+  nbytes = read (sock, reply + 1, reply->size - sizeof (reply_header));
+  if (nbytes != (ssize_t) (reply->size - sizeof (reply_header)))
+    return -1;
+
+  return 0;
+}