Update.cvs/libc-ud-971031

1997-10-31 23:16  Ulrich Drepper  <drepper@cygnus.com>

	* posix/glob.c (glob): If calling glob_in_dir for a list which was
	generated by a glob call disable GLOB_ERR since there might be
	non-directories in the list (PR203).

	* posix/glob.h (GLOB_ONLYDIR): New flag.
	(__GLOB_FLAGS): Add GLOB_ONLYDIR.
	* posix/glob.c: Define HAVE_D_TYPE if _DIRENT_HAVE_D_TYPE is defined.
	(glob): Add GLOB_ONLYDIR to recursive call to match dirname.
	(glob_in_dir) [HAVE_D_TYPE]: While reading directory entries test
	whether they are directories if GLOB_ONLYDIR flag is given.
	* manual/pattern.texi: Document GLOB_ONLYDIR.

	* misc/Makefile (tests): Add tst-fdset.

	* sysdeps/i386/bits/select.h: Rewrite asm macros to be cleaner.

	* sysdeps/unix/sysv/linux/Dist: Add xstatconv.c.
	* sysdeps/unix/sysv/linux/alpha/Dist: Likewise.

	* time/strptime.c (strptime_internal): In %y format, regard years
	>= 69 as of twentieth century, all other as of twenty-first.

	* time/tzset.c: Correct typo and little optimization.

1997-10-31 16:01  Ulrich Drepper  <drepper@cygnus.com>

	* inet/getnetgrent.c: Allocate buffer dynamically if needed.
	Suggested by Joe Keane <jgk@jgk.org>.

1997-10-31  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* io/ftw.h: Declare __ftw64_func_t and __nftw64_func_t only when
	__USE_FILE_OFFSET64 || __USE_LARGEFILE64 is true.

1997-10-30 05:47  Ulrich Drepper  <drepper@cygnus.com>

	* misc/mntent.c: Don't use statically allocated buffer.  Allocate
	it dynamically if necessary.
	* misc/efgcvt.c: Likewise.
	Patch by Joe Keane <jgk@jgk.org>.

	* misc/mntent.c: Allow freeing of allocated buffer in
	__libc_subfreeres.
	* misc/efgcvt.c: Likewise.

	* misc/efgcvt.c: Call correct reentrant functions.
	Use better values for MAXDIG.
	* misc/qefgcvt.c: Use better values for MAXDIG.

1997-10-29 18:48   Richard Henderson  <rth@cygnus.com>

	* sysdeps/unix/sysv/linux/Makefile [io]: Add xstatconv.
	* sysdeps/unix/sysv/linux/alpha/xstatconv.c: New file.  Convert
	between kernel_stat and the userland version indicated.
	* sysdeps/unix/sysv/linux/xstatconv.c: Likewise.
	* sysdeps/unix/sysv/linux/bits/stat.h: Define _STAT_VER_KERNEL.

	* sysdeps/unix/sysv/linux/fxstat.c: Defer to __xstat_conv.  Alias
	to __*xstat64 if requested.
	* sysdeps/unix/sysv/linux/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/xstat.c: Likewise.

	* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Add struct stat64.
	Increment _STAT_VER, and make struct stat the same.
	* sysdeps/unix/sysv/linux/alpha/bits/types.h: Add __ino64_t, and
	__off64_t.  Reorganize.
	* sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Add struct glibc2_stat
	for backward compatibility.  Define XSTAT_IS_XSTAT64.

	* sysdeps/unix/sysv/linux/alpha/fxstat64.c: Empty file.
	* sysdeps/unix/sysv/linux/alpha/lxstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/alpha/xstat64.c: Likewise.

	* sysdeps/unix/sysv/linux/alpha/bits/dirent.h (struct dirent): For
	consistency, force d_ino to use ino_t and supply padding.

1997-10-29 18:47  Richard Henderson  <rth@cygnus.com>

	* libio/iofopen.c: Correct weak_alias.

32 files changed, 711 insertions, 259 deletions

diff --git a/BUGS b/BUGS
index afe188ccd0..701acf0e00 100644
--- a/BUGS
+++ b/BUGS
@@ -1,7 +1,7 @@
 	    List of known bugs (certainly very incomplete)
 	    ----------------------------------------------
 
-Time-stamp: <1997-10-25T06:32:15+0200 drepper>
+Time-stamp: <1997-10-31T16:49:39+0100 drepper>
 
 This following list contains those bugs which I'm aware of.  Please
 make sure that bugs you report are not listed here.  If you can fix one
@@ -36,12 +36,6 @@ Severity: [  *] to [***]
        flag was given.
        [PR libc/72]
 
-[  *]  On Linux, the <linux/posix_types.h> is not clean enough to satisfy
-       the C++ namespace rules.  Declaring `struct fd_set' also makes
-       `fd_set' available in the global namespace which conflicts with
-       the definition of `fd_set' in glibc.
-       [PR libc/79]
-
 [  *]  On Linux, there should be a way to prevent defining the symbol
        NGROUPS_MAX in the <linux/limits.h> header file.  In glibc it
        is defined in <posix1_lim.h> which must not make the other
@@ -69,13 +63,6 @@ Severity: [  *] to [***]
        with gcc. This seems to be a bug in gcc 2.7.2.x (egcs doesn't
        have this bug).
        [PR libc/245]
-
-[  *]  gethostbyname returns HOST_NOT_FOUND if the nameserver is
-       unreachable and nsswitch.conf contains a line with:
-       hosts: files dns
-       If the only method is dns gethostbyname return
-       TRY_AGAIN.  gethostbyname should return in both cases TRY_AGAIN.
-       [PR libc/244]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Ulrich Drepper
 drepper@cygnus.com
diff --git a/ChangeLog b/ChangeLog
index 0119a22520..1b9fa7de1a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,85 @@
+1997-10-31 23:16  Ulrich Drepper  <drepper@cygnus.com>
+
+	* posix/glob.c (glob): If calling glob_in_dir for a list which was
+	generated by a glob call disable GLOB_ERR since there might be
+	non-directories in the list (PR203).
+
+	* posix/glob.h (GLOB_ONLYDIR): New flag.
+	(__GLOB_FLAGS): Add GLOB_ONLYDIR.
+	* posix/glob.c: Define HAVE_D_TYPE if _DIRENT_HAVE_D_TYPE is defined.
+	(glob): Add GLOB_ONLYDIR to recursive call to match dirname.
+	(glob_in_dir) [HAVE_D_TYPE]: While reading directory entries test
+	whether they are directories if GLOB_ONLYDIR flag is given.
+	* manual/pattern.texi: Document GLOB_ONLYDIR.
+
+	* misc/Makefile (tests): Add tst-fdset.
+
+	* sysdeps/i386/bits/select.h: Rewrite asm macros to be cleaner.
+
+	* sysdeps/unix/sysv/linux/Dist: Add xstatconv.c.
+	* sysdeps/unix/sysv/linux/alpha/Dist: Likewise.
+
+	* time/strptime.c (strptime_internal): In %y format, regard years
+	>= 69 as of twentieth century, all other as of twenty-first.
+
+	* time/tzset.c: Correct typo and little optimization.
+
+1997-10-31 16:01  Ulrich Drepper  <drepper@cygnus.com>
+
+	* inet/getnetgrent.c: Allocate buffer dynamically if needed.
+	Suggested by Joe Keane <jgk@jgk.org>.
+
+1997-10-31  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
+
+	* io/ftw.h: Declare __ftw64_func_t and __nftw64_func_t only when
+	__USE_FILE_OFFSET64 || __USE_LARGEFILE64 is true.
+
+1997-10-30 05:47  Ulrich Drepper  <drepper@cygnus.com>
+
+	* misc/mntent.c: Don't use statically allocated buffer.  Allocate
+	it dynamically if necessary.
+	* misc/efgcvt.c: Likewise.
+	Patch by Joe Keane <jgk@jgk.org>.
+
+	* misc/mntent.c: Allow freeing of allocated buffer in
+	__libc_subfreeres.
+	* misc/efgcvt.c: Likewise.
+
+	* misc/efgcvt.c: Call correct reentrant functions.
+	Use better values for MAXDIG.
+	* misc/qefgcvt.c: Use better values for MAXDIG.
+
+1997-10-29 18:48   Richard Henderson  <rth@cygnus.com>
+
+	* sysdeps/unix/sysv/linux/Makefile [io]: Add xstatconv.
+	* sysdeps/unix/sysv/linux/alpha/xstatconv.c: New file.  Convert
+	between kernel_stat and the userland version indicated.
+	* sysdeps/unix/sysv/linux/xstatconv.c: Likewise.
+	* sysdeps/unix/sysv/linux/bits/stat.h: Define _STAT_VER_KERNEL.
+
+	* sysdeps/unix/sysv/linux/fxstat.c: Defer to __xstat_conv.  Alias
+	to __*xstat64 if requested.
+	* sysdeps/unix/sysv/linux/lxstat.c: Likewise.
+	* sysdeps/unix/sysv/linux/xstat.c: Likewise.
+
+	* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Add struct stat64.
+	Increment _STAT_VER, and make struct stat the same.
+	* sysdeps/unix/sysv/linux/alpha/bits/types.h: Add __ino64_t, and
+	__off64_t.  Reorganize.
+	* sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Add struct glibc2_stat
+	for backward compatibility.  Define XSTAT_IS_XSTAT64.
+
+	* sysdeps/unix/sysv/linux/alpha/fxstat64.c: Empty file.
+	* sysdeps/unix/sysv/linux/alpha/lxstat64.c: Likewise.
+	* sysdeps/unix/sysv/linux/alpha/xstat64.c: Likewise.
+
+	* sysdeps/unix/sysv/linux/alpha/bits/dirent.h (struct dirent): For
+	consistency, force d_ino to use ino_t and supply padding.
+
+1997-10-29 18:47  Richard Henderson  <rth@cygnus.com>
+
+	* libio/iofopen.c: Correct weak_alias.
+
 1997-10-29  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
 
 	* Makerules (install): Correct last patch.
diff --git a/FAQ b/FAQ
index b1e4da343f..1dcb3a3fb1 100644
--- a/FAQ
+++ b/FAQ
@@ -100,6 +100,10 @@ please let me know.
 
 [Q28]	``After upgrading to a glibc 2.1 with symbol versioning I get
 	  errors about undefined symbols.  What went wrong?''
+
+[Q29]	``I don't include any kernel header myself but still the
+	  compiler complains about type redeclarations of types in the
+	  kernel headers.''
 
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 [Q1]	``What systems does the GNU C Library run on?''
@@ -116,6 +120,8 @@ in the future are:
 	m68k-*-linux-gnu	Linux-2.0 on Motorola 680x0
 	alpha-*-linux-gnu	Linux-2.0 on DEC Alpha
 	powerpc-*-linux-gnu     Linux and MkLinux on PowerPC systems
+	sparc-*-linux-gnu	Linux-2.0 on SPARC
+	sparc64-*-linux-gnu	Linux-2.0 on UltraSPARC
 
 Other Linux platforms are also on the way to be supported but I need
 some success reports first.
@@ -756,6 +762,21 @@ with symbol versioning.
 
 
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+[Q29]	``I don't include any kernel header myself but still the
+	  compiler complains about type redeclarations of types in the
+	  kernel headers.''
+
+[A29] {UD} The kernel headers before Linux 2.1.61 don't work correctly with
+glibc since they pollute the name space in a not acceptable way.  Compiling
+C programs is possible in most cases but especially C++ programs have (due
+to the change of the name lookups for `struct's) problem.  One prominent
+example is `struct fd_set'.
+
+There might be some more problems left but 2.1.61 fixes some of the known
+ones.  See the BUGS file for other known problems.
+
+
+~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 
 Answers were given by:
 {UD} Ulrich Drepper, <drepper@cygnus.com>
diff --git a/inet/getnetgrent.c b/inet/getnetgrent.c
index c310e0128e..88b06ffc98 100644
--- a/inet/getnetgrent.c
+++ b/inet/getnetgrent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,13 +16,48 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include <errno.h>
 #include <netdb.h>
+#include <stdlib.h>
+#include <bits/libc-lock.h>
 
+/* Statis buffer for return value.  We allocate it when needed.  */
+static char *buffer;
+/* All three strings should fit in a block of 1kB size.  */
+#define BUFSIZE 1024
+
+
+
+static void
+allocate (void)
+{
+  buffer = (char *) malloc (BUFSIZE);
+}
 
 int
 getnetgrent (char **hostp, char **userp, char **domainp)
 {
-  static char buffer[1024];	/* All three strings shouldn't use 1kB.  */
+  __libc_once_define (static, once);
+  __libc_once (once, allocate);
+
+  if (buffer == NULL)
+    {
+      __set_errno (ENOMEM);
+      return -1;
+    }
 
-  return __getnetgrent_r (hostp, userp, domainp, buffer, sizeof (buffer));
+  return __getnetgrent_r (hostp, userp, domainp, buffer, BUFSIZE);
 }
+
+
+/* Make sure the memory is freed if the programs ends while in
+   memory-debugging mode and something actually was allocated.  */
+static void
+__attribute__ ((unused))
+free_mem (void)
+{
+  if (buffer != NULL)
+    free (buffer);
+}
+
+text_set_element (__libc_subfreeres, free_mem);
diff --git a/io/ftw.h b/io/ftw.h
index ac4abeeb18..f71a86e13f 100644
--- a/io/ftw.h
+++ b/io/ftw.h
@@ -88,16 +88,20 @@ struct FTW
 /* Convenient types for callback functions.  */
 typedef int (*__ftw_func_t) __P ((__const char *__filename,
 				  __const struct stat *__status, int __flag));
+#if defined __USE_LARGEFILE64 || defined __USE_FILE_OFFSET64
 typedef int (*__ftw64_func_t) __P ((__const char *__filename,
 				    __const struct stat64 *__status,
 				    int __flag));
+#endif
 #ifdef __USE_XOPEN_EXTENDED
 typedef int (*__nftw_func_t) __P ((__const char *__filename,
 				   __const struct stat *__status, int __flag,
 				   struct FTW *__info));
+# if defined __USE_LARGEFILE64 || defined __USE_FILE_OFFSET64
 typedef int (*__nftw64_func_t) __P ((__const char *__filename,
 				     __const struct stat64 *__status,
 				     int __flag, struct FTW *__info));
+# endif
 #endif
 
 /* Call a function on every element in a directory tree.  */
diff --git a/libio/iofopen.c b/libio/iofopen.c
index b74b6926c0..59d1ce571e 100644
--- a/libio/iofopen.c
+++ b/libio/iofopen.c
@@ -65,7 +65,7 @@ default_symbol_version (_IO_new_fopen, _IO_fopen, GLIBC_2.1);
 default_symbol_version (__new_fopen, fopen, GLIBC_2.1);
 #else
 # ifdef weak_alias
-weak_symbol (_IO_new_fopen, _IO_fopen)
-weak_symbol (_IO_new_fopen, fopen)
+weak_alias (_IO_new_fopen, _IO_fopen)
+weak_alias (_IO_new_fopen, fopen)
 # endif
 #endif
diff --git a/manual/pattern.texi b/manual/pattern.texi
index 596b72d4fa..0fc5e81c75 100644
--- a/manual/pattern.texi
+++ b/manual/pattern.texi
@@ -466,6 +466,21 @@ glob ("~homer/bin/*", GLOB_TILDE, NULL, &result)
 @end smallexample
 
 This functionality is equivalent to what is available in C-shells.
+
+@comment glob.h
+@comment GNU
+@item GLOB_ONLYDIR
+If this flag is used the globbing function takes this as a
+@strong{hint} that the caller is only interested in directories
+matching the pattern.  If the information about the type of the file
+is easily available non-directories will be rejected but no extra
+work will be done to determine the information for each file.  I.e.,
+the caller must still be able to filter directories out.
+
+This functionality is only available witht eh GNU @code{glob}
+implementation.  It is mainly used internally to increase the
+performance but might be useful for a user as well and therefore is
+documented here.
 @end table
 
 Calling @code{glob} will in most cases allocate resources which are used
diff --git a/misc/Makefile b/misc/Makefile
index 4cca2f32c1..7975964471 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -64,7 +64,7 @@ install-lib := libbsd-compat.a libg.a
 non-lib.a := libbsd-compat.a
 gpl2lgpl := error.c error.h
 
-tests := tst-dirname tst-tsearch
+tests := tst-dirname tst-tsearch tst-fdset
 
 include ../Rules
 
diff --git a/misc/efgcvt.c b/misc/efgcvt.c
index 24d63176d0..8c92766c63 100644
--- a/misc/efgcvt.c
+++ b/misc/efgcvt.c
@@ -20,28 +20,60 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <float.h>
+#include <bits/libc-lock.h>
 
 #ifndef FLOAT_TYPE
-#define FLOAT_TYPE double
-#define FUNC_PREFIX
-#define FLOAT_FMT_FLAG
-#define MAXDIG (DBL_DIG + DBL_MAX_10_EXP)
+# define FLOAT_TYPE double
+# define FUNC_PREFIX
+# define FLOAT_FMT_FLAG
+/* Actually we have to write (DBL_DIG + log10 (DBL_MAX_10_EXP)) but we
+   don't have log10 available in the preprocessor.  */
+# define MAXDIG (DBL_DIG + 3)
 #endif
 
 #define APPEND(a, b) APPEND2 (a, b)
 #define APPEND2(a, b) a##b
 
 
+#define FCVT_BUFFER APPEND (FUNC_PREFIX, fcvt_buffer)
+#define ECVT_BUFFER APPEND (FUNC_PREFIX, ecvt_buffer)
+
+
+static char *FCVT_BUFFER;
+static char *ECVT_BUFFER;
+
+
+static void
+APPEND (FUNC_PREFIX, fcvt_allocate) (void)
+{
+  FCVT_BUFFER = (char *) malloc (MAXDIG);
+}
+
 char *
 APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
      FLOAT_TYPE value;
      int ndigit, *decpt, *sign;
 {
-  static char buf[MAXDIG];
+  __libc_once_define (static, once);
+  __libc_once (once, APPEND (FUNC_PREFIX, fcvt_allocate));
 
-  (void) fcvt_r (value, ndigit, decpt, sign, buf, sizeof buf);
+  if (FCVT_BUFFER == NULL)
+    /* If no core is available we don't have a chance to run the
+       program successfully and so returning NULL is an acceptable
+       result.  */
+    return NULL;
 
-  return buf;
+  (void) APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
+				       FCVT_BUFFER, MAXDIG);
+
+  return FCVT_BUFFER;
+}
+
+
+static void
+APPEND (FUNC_PREFIX, ecvt_allocate) (void)
+{
+  ECVT_BUFFER = (char *) malloc (MAXDIG);
 }
 
 char *
@@ -49,11 +81,19 @@ APPEND (FUNC_PREFIX, ecvt) (value, ndigit, decpt, sign)
      FLOAT_TYPE value;
      int ndigit, *decpt, *sign;
 {
-  static char buf[MAXDIG];
+  __libc_once_define (static, once);
+  __libc_once (once, APPEND (FUNC_PREFIX, ecvt_allocate));
 
-  (void) ecvt_r (value, ndigit, decpt, sign, buf, sizeof buf);
+  if (ECVT_BUFFER == NULL)
+    /* If no core is available we don't have a chance to run the
+       program successfully and so returning NULL is an acceptable
+       result.  */
+    return NULL;
 
-  return buf;
+  (void) APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign,