Wed May 22 01:48:54 1996 Ulrich Drepper <drepper@cygnus.com>

	* stdlib/strtol.c [!QUAD] (ULONG_MAX, LONG_MAX): Define these
	macros if they are not available.
	(WEAKNAME): New macro to declare argument as weak.
	Define function with __ prefix and add normal name as weak alias.

	* sysdeps/posix/euidaccess.c (S_IROTH, S_IWOTH, S_IXOTH): Defines
	these macros if not already available based on R_OK, W_OK, and
	X_OK.

Tue May 21 18:48:46 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* misc/sys/syslog.h (__need___va_list): Define this instead of
	__need_va_list before including <stdarg.h>.

	* Makerules (o-iterator): Use $(object-suffixes-left) instead
	of $(object-suffixes) to produce repetitions; this is used for other
	lists than just that one.
	[versioned]: Use $(o-iterator) properly.

	* sysdeps/unix/sysv/linux/Implies: Include `gnu'.
	* sysdeps/mach/hurd/Implies: Likewise.

Sat May 18 02:57:46 1996  Ulrich Drepper  <drepper@cygnus.com>

	* login/Makefile: New file.  This directory contains functions
	for user administration.
	* Makefile (subdirs): Add login.

	* misc/Makefile (headers): Remove utmp.h.  Now in login/utmp.h.
	(extra-libs, libutil-routines): Ditto.
	* misc/login.c, misc/login_tty.c, misc/logout.c, misc/logwtmp.c,
	misc/utmp.h: Moved to misc/.
	* login/login.c, login/login_tty.c, login/logout.c,
        login/logwtmp.c, login/utmp.h: Moved to here from misc/.

	* login/utmp.h: Split file.  Definitions of data structures
	and constants are now in the system dependent utmpbits.h file.

	* login/setutent_r.c, login/setutent.c, login/endutent_r.c,
	login/endutent.c, login/getutent_r.c, login/getutent.c,
	login/getutid_r.c, login/getutid.c, login/getutline_r.c,
	login/getutline.c, login/pututline_r.c, login/pututline.c:
	New files.  Routines to handle utmp-style files.

	* sysdeps/gnu/utmpbits.h: New file.  Contains GNU/Linux
	specific definitions of utmp data structures and constants.

	* sysdeps/unix/sysv/utmpbits.h: Renamed from sysdeps/unix/sysv/utmp.h.

	* sysdeps/generic/utmpbits.h: New file.  Generic (BSDish) version of
	definitions of utmp data structures and constants.

Fri May 17 00:01:31 1996  Ulrich Drepper  <drepper@cygnus.com>

	* locale/C-monetary.c: Default value for mon_decimal_point should be
        '.'.

	* stdio-common/printf.h: Remove Linux libc compatibility stuff.
	Add `extra' flag.  Currently used in __printf_fp.

	* stdio-common/printf_fp.c (__guess_grouping): Renamed from
        `guess_grouping' and extend visibility to extern.  This function
        is now used in `strfmon'.
	(__printf_fp): Recognize new bit flag in info struct.  This
	triggers to use the grouping information and decimal point from
	the LC_MONETARY category instead of the LC_NUMERIC category.

	* stdio-common/vfprintf.c (process_arg): Correct major bug.  In
	`complicated' loop we must not use the varargs because the args
	are already available in the ARGS_VALUE array.

	* stdlib/Makefile (headers): Add monetary.h.
	(routines): Add strfmon.
	* stdlib/monetary.h: New file.  Header for strfmon function.
	* stdlib/strfmon.c: New file.  Implement strfmon function to print
	monetary amounts according to current locale's rules.

	* sysdeps/unix/sysv/linux/i386/sys/vm86.h: The kernel header is
	now (>= Linux-1.3.100) called <asm/vm86.h>.

1 files changed, 89 insertions, 0 deletions

diff --git a/login/pututline_r.c b/login/pututline_r.c
new file mode 100644
index 0000000000..365a37672e
--- /dev/null
+++ b/login/pututline_r.c
@@ -0,0 +1,89 @@
+/* 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 <alloca.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <utmp.h>
+#include <sys/file.h>
+
+
+int
+pututline_r (const struct utmp *utmp_ptr, struct utmp_data *utmp_data)
+{
+  /* Open utmp file if not already done.  */
+  if (utmp_data->ut_fd == -1)
+    {
+      setutent_r (utmp_data);
+      if (utmp_data->ut_fd == -1)
+	return -1;
+    }
+
+  /* Seek position to write.  */
+  if (utmp_data->ubuf.ut_type != utmp_ptr->ut_type)
+    {
+      /* We must not overwrite the data in UTMP_DATA.  */
+      struct utmp_data *data_tmp = alloca (sizeof (utmp_data));
+      struct utmp *dummy;
+
+      memcpy (data_tmp, utmp_data, sizeof (utmp_data));
+      utmp_data = data_tmp;
+      
+      if (getutid_r (utmp_ptr, &dummy, utmp_data) < 0)
+	{
+	  if (errno != ESRCH)
+	    return -1;
+
+	  utmp_data->loc_utmp = lseek (utmp_data->ut_fd, 0, SEEK_END);
+	  if (utmp_data->loc_utmp == -1)
+	    return -1;
+	}
+    }
+
+  /* Position file correctly.  */
+  if (utmp_data->loc_utmp > 0
+      && lseek (utmp_data->ut_fd, utmp_data->loc_utmp - sizeof (struct utmp),
+		SEEK_SET) < 0)
+    return -1;
+
+  /* XXX An alternative solution would be to call an SUID root program
+     which write the new value.  */
+  
+  /* Try to lock the file.  */
+  if (flock (utmp_data->ut_fd, LOCK_EX | LOCK_NB) < 0 && errno != ENOSYS)
+    {
+      /* Oh, oh.  The file is already locked.  Wait a bit and try again.  */
+      sleep (1);
+
+      /* This time we ignore the error.  */
+      (void) flock (utmp_data->ut_fd, LOCK_EX | LOCK_NB);
+    }
+  
+  /* Write the new data.  */
+  if (write (utmp_data->ut_fd, &utmp_data->ubuf, sizeof (struct utmp))
+      != sizeof (struct utmp))
+    return -1;
+
+  /* And unlock the file.  */
+  (void) flock (utmp_data->ut_fd, LOCK_UN);
+
+  return 0;
+}