* sysdeps/generic/utmp-equal.h: New file, extracted from utmp_file.c.

	* sysdeps/generic/utmp_file.c (setutent_file): Invalidate last_entry
	also on platforms with !HAVE_UT_TYPE.
	(proc_utmp_eq): Remove function.
	(internal_getut_r, pututline_file): Call __utmp_equal instead.

2002-09-20  Bruno Haible  <bruno@clisp.org>

	* abi-tags: Add support for FreeBSD with ABI OS value 3.
	* elf/cache.c (print_entry): Support the GNU/FreeBSD ABI tag.

ChangeLog

@@ -1,3 +1,16 @@
+2002-09-17  Bruno Haible  <bruno@clisp.org>
+
+	* sysdeps/generic/utmp-equal.h: New file, extracted from utmp_file.c.
+	* sysdeps/generic/utmp_file.c (setutent_file): Invalidate last_entry
+	also on platforms with !HAVE_UT_TYPE.
+	(proc_utmp_eq): Remove function.
+	(internal_getut_r, pututline_file): Call __utmp_equal instead.
+
+2002-09-20  Bruno Haible  <bruno@clisp.org>
+
+	* abi-tags: Add support for FreeBSD with ABI OS value 3.
+	* elf/cache.c (print_entry): Support the GNU/FreeBSD ABI tag.
+
 2002-09-20  Roland McGrath  <roland@redhat.com>
 
 	* sysdeps/generic/gmp-mparam.h: Include <bits/wordsize.h>.

abi-tags

@@ -22,5 +22,7 @@
 
 .*-sun-solaris2.*	2	2.0.0	# just an arbitrary value
 
+.*-.*-freebsd.*-gnu.*	3	4.0.0	# earliest compatible kernel version
+
 # There is no catch-all default here because every supported OS that uses
 # ELF must have its own unique ABI tag.

elf/cache.c

@@ -101,12 +101,14 @@ print_entry (const char *lib, int flag, unsigned int osversion,
 	[0] = "Linux",
 	[1] = "Hurd",
 	[2] = "Solaris",
-	[3] = N_("Unknown OS")
+	[3] = "FreeBSD",
+	[4] = N_("Unknown OS")
       };
+#define MAXTAG (sizeof abi_tag_os / sizeof abi_tag_os[0] - 1)
       unsigned int os = osversion >> 24;
 
       printf (_(", OS ABI: %s %d.%d.%d"),
-	      _(abi_tag_os[os > 3 ? 3 : os]),
+	      _(abi_tag_os[os > MAXTAG ? MAXTAG : os]),
 	      (osversion >> 16) & 0xff,
 	      (osversion >> 8) & 0xff,
 	      osversion & 0xff);

sysdeps/generic/utmp-equal.h

@@ -0,0 +1,53 @@
+/* Helper function for utmp functions to see if two entries are equal.
+   Copyright (C) 1996,97,98,99,2000,01,02 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>
+   and Paul Janzen <pcj@primenet.com>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <string.h>
+#include <utmp.h>
+
+#include "utmp-private.h"
+
+/* Test whether two entries match.  */
+static int
+__utmp_equal (const struct utmp *entry, const struct utmp *match)
+{
+  return
+    (
+#if _HAVE_UT_TYPE - 0
+     (entry->ut_type == INIT_PROCESS
+      || entry->ut_type == LOGIN_PROCESS
+      || entry->ut_type == USER_PROCESS
+      || entry->ut_type == DEAD_PROCESS)
+     &&
+     (match->ut_type == INIT_PROCESS
+      || match->ut_type == LOGIN_PROCESS
+      || match->ut_type == USER_PROCESS
+      || match->ut_type == DEAD_PROCESS)
+     &&
+#endif
+#if _HAVE_UT_ID - 0
+     (entry->ut_id[0] && match->ut_id[0]
+      ? strncmp (entry->ut_id, match->ut_id, sizeof match->ut_id) == 0
+      : strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0)
+#else
+     strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0
+#endif
+     );
+}

sysdeps/generic/utmp_file.c

@@ -28,6 +28,7 @@
 #include <utmp.h>
 
 #include "utmp-private.h"
+#include "utmp-equal.h"
 
 
 /* Descriptor for the file and position.  */
@@ -148,9 +149,14 @@ setutent_file (void)
   __lseek64 (file_fd, 0, SEEK_SET);
   file_offset = 0;
 
-#if _HAVE_UT_TYPE - 0
   /* Make sure the entry won't match.  */
+#if _HAVE_UT_TYPE - 0
   last_entry.ut_type = -1;
+#else
+  last_entry.ut_line[0] = '\177';
+# if _HAVE_UT_ID - 0
+  last_entry.ut_id[0] = '\0';
+# endif
 #endif
 
   return 1;
@@ -199,33 +205,6 @@ getutent_r_file (struct utmp *buffer, struct utmp **result)
 }
 
 
-static int
-proc_utmp_eq (const struct utmp *entry, const struct utmp *match)
-{
-  return
-    (
-#if _HAVE_UT_TYPE - 0
-     (entry->ut_type == INIT_PROCESS
-      || entry->ut_type == LOGIN_PROCESS
-      || entry->ut_type == USER_PROCESS
-      || entry->ut_type == DEAD_PROCESS)
-     &&
-     (match->ut_type == INIT_PROCESS
-      || match->ut_type == LOGIN_PROCESS
-      || match->ut_type == USER_PROCESS
-      || match->ut_type == DEAD_PROCESS)
-     &&
-#endif
-#if _HAVE_UT_ID - 0
-     (entry->ut_id[0] && match->ut_id[0]
-      ? strncmp (entry->ut_id, match->ut_id, sizeof match->ut_id) == 0
-      : strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0)
-#else
-     strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0
-#endif
-     );
-}
-
 static int
 internal_getut_r (const struct utmp *id, struct utmp *buffer)
 {
@@ -275,7 +254,7 @@ internal_getut_r (const struct utmp *id, struct utmp *buffer)
 	    }
 	  file_offset += sizeof (struct utmp);
 
-	  if (proc_utmp_eq (buffer, id))
+	  if (__utmp_equal (buffer, id))
 	    break;
 	}
     }
@@ -390,7 +369,7 @@ pututline_file (const struct utmp *data)
 	       || last_entry.ut_type == NEW_TIME))
 	  ||
 #endif
-	  proc_utmp_eq (&last_entry, data)))
+	  __utmp_equal (&last_entry, data)))
     found = 1;
   else
     found = internal_getut_r (data, &buffer);