Wed Jul 3 16:29:41 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> cvs/libc-960705 cvs/libc-960704

	* nss/getXXbyYY_r.c (REENTRANT_NAME): Cast FCT in __nss_next call.

	* sysdeps/generic/sbrk.c: Always call __brk (0) to update __curbrk.

	* malloc/malloc-size.c (malloc_usable_size): Renamed from
	malloc_object_allocation_size.
	* malloc/malloc.h: Fix decl.

	* sys/select.h: New file, wrapper header.

	* posix/sys/types.h [__USE_BSD]: Include <sys/select.h>; remove
	fd_set, associated macros, and select decl.

	* sysdeps/posix/isfdtype.c: New file.

Tue Jul  2 23:45:14 1996  Ulrich Drepper  <drepper@cygnus.com>

	The latest Japanese proposal for POSIX locales renames the
	CHARMAP keyword in locale definition files to CHARCONV.
	* locale/programs/ld-ctype.c, locale/programs/locales.h: Rename
        function ctype_is_charmap to ctype_is_charconv.
	* locale/programs/locfile-kw.gperf: Replace charmap keyword with
        charconv.
	* locale/programs/locfile-token.h: Add definition of token
        charconv.
	* locale/programs/locfile.c: Recognize charconv keyword.  Rename
        lables according to this.

	* locale/weight.h (get_weight): Cast constants to prevent
        warnings.

	* stdlib/strtod.c, stdlib/strtol.c, string/strcoll.c,
	string/strxfrm.c: Add some more casts to prevent signed<->unsigned
	warnings.

	New stuff described in P1003.1g.
	* misc/Makefile (headers): Add sys/select.h.
	(routines): Add pselect.
	* misc/sys/select.h: New file.  Declare select functions and
	needed data types and macros.
	* sysdeps/generic/pselect.c: New file.  Add generic implementation
	of pselect() function which uses select().

	* posix/getconf.c: Recognize new variables from P1003.1g.
	* posix/posix1_lim.h: Define _POSIX_FD_SETSIZE, _POSIX_QLIMIT,
	_POSIX_HIWAT, and _POSIX_UIO_MAXIOV.
	* posix/unistd.h: Add description of the P1003.1g variables.
	* sysdeps/generic/confname.h: Define _SC_* values for new
	variables.
	* sysdeps/posix/fpathconf.c (fpathconf): Add handling of
	_PC_SOCK_MAXBUF.
	* sysdeps/stub/fpathconf.c (fpathconf): Ditto.
	* sysdeps/posix/sysconf.c (sysconf): Add handling of new
	P1003.1g variables.
	* sysdeps/stub/sysconf.c (sysconf): Ditto.
	* sysdeps/unix/sysv/linux/posix_opt.h: Define _POSIX_POLL and
	_POSIX_SELECT since Linux has this.

	* socket/Makefile (routines): Add isfdtype.
	* sysdeps/generic/sys/socket.h: Add prototype for isfdtype.
	* sysdeps/stub/isfdtype.c: New file.  Stub implementation of
	isfdtype.

	* wcsmbs/wcrtomb.c (wcrtomb): Fix typo.

11 files changed, 293 insertions, 5 deletions

diff --git a/sysdeps/generic/confname.h b/sysdeps/generic/confname.h
index 717229a3ab..3bc6b27652 100644
--- a/sysdeps/generic/confname.h
+++ b/sysdeps/generic/confname.h
@@ -41,8 +41,10 @@ enum
 #define	_PC_SYNC_IO		_PC_SYNC_IO
     _PC_ASYNC_IO,
 #define	_PC_ASYNC_IO		_PC_ASYNC_IO
-    _PC_PRIO_IO
+    _PC_PRIO_IO,
 #define	_PC_PRIO_IO		_PC_PRIO_IO
+    _PC_SOCK_MAXBUF
+#define	_PC_SOCK_MAXBUF		_PC_SOCK_MAXBUF
   };
 
 /* Values for the argument to `sysconf'.  */
@@ -156,7 +158,37 @@ enum
 #define	_SC_2_FORT_RUN		_SC_2_FORT_RUN
     _SC_2_SW_DEV,
 #define	_SC_2_SW_DEV		_SC_2_SW_DEV
-    _SC_2_LOCALEDEF
+    _SC_2_LOCALEDEF,
+#define	_SC_2_LOCALEDEF		_SC_2_LOCALEDEF
+
+    _SC_PII,
+#define	_SC_PII			_SC_PII
+    _SC_PII_XTI,
+#define	_SC_PII_XTI		_SC_PII_XTI
+    _SC_PII_SOCKET,
+#define	_SC_PII_SOCKET		_SC_PII_SOCKET
+    _SC_PII_INTERNET,
+#define	_SC_PII_INTERNET	_SC_PII_INTERNET
+    _SC_PII_OSI,
+#define	_SC_PII_OSI		_SC_PII_OSI
+    _SC_POLL,
+#define	_SC_POLL		_SC_POLL
+    _SC_SELECT,
+#define	_SC_SELECT		_SC_SELECT
+    _SC_UIO_MAXIOV,
+#define	_SC_UIO_MAXIOV		_SC_UIO_MAXIOV
+    _SC_PII_INTERNET_STREAM,
+#define	_SC_PII_INTERNET_STREAM	_SC_PII_INTERNET_STREAM
+    _SC_PII_INTERNET_DGRAM,
+#define	_SC_PII_INTERNET_DGRAM	_SC_PII_INTERNET_DGRAM
+    _SC_PII_OSI_COTS,
+#define	_SC_PII_OSI_COTS	_SC_PII_OSI_COTS
+    _SC_PII_OSI_CLTS,
+#define	_SC_PII_OSI_CLTS	_SC_PII_OSI_CLTS
+    _SC_PII_OSI_M,
+#define	_SC_PII_OSI_M		_SC_PII_OSI_M
+    _SC_T_IOV_MAX
+#define	_SC_T_IOV_MAX		_SC_T_IOV_MAX
   };
 
 #ifdef __USE_POSIX2
diff --git a/sysdeps/generic/pselect.c b/sysdeps/generic/pselect.c
new file mode 100644
index 0000000000..165fd32148
--- /dev/null
+++ b/sysdeps/generic/pselect.c
@@ -0,0 +1,55 @@
+/* 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 <errno.h>
+#include <sys/select.h>
+
+/* Check the first NFDS descriptors each in READFDS (if not NULL) for read
+   readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
+   (if not NULL) for exceptional conditions.  If TIMEOUT is not NULL, time out
+   after waiting the interval specified therein.  Returns the number of ready
+   descriptors, or -1 for errors.  */
+int
+__pselect (nfds, readfds, writefds, exceptfds, timeout)
+     int nfds;
+     fd_set *readfds;
+     fd_set *writefds;
+     fd_set *exceptfds;
+     struct timespec *timeout;
+{
+  struct timeval tval;
+  int retval;
+
+  /* Change nanosecond number to microseconds.  This may loose
+     precision and therefore the `pselect` should be available.  But
+     for now it is hardly found.  */
+  if (timeout != NULL)
+    TIMESPEC_TO_TIMEVAL (&tval, timeout);
+
+  retval = __select (nfds, readfds, writefds, exceptfds,
+		     timeout != NULL ? &tval : NULL);
+
+  /* Change the result back.  The remaining time must be made
+     available to the caller.  */
+  if (timeout != NULL)
+    TIMEVAL_TO_TIMESPEC (&tval, timeout);
+
+  return retval;
+}
+weak_alias (__pselect, pselect)
diff --git a/sysdeps/generic/sbrk.c b/sysdeps/generic/sbrk.c
index de7794697d..698f814e2b 100644
--- a/sysdeps/generic/sbrk.c
+++ b/sysdeps/generic/sbrk.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996 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 modify
@@ -30,7 +30,11 @@ __sbrk (ptrdiff_t increment)
 {
   void *oldbrk;
 
-  if (__curbrk == 0 && __brk (0) < 0)
+  /* Always update __curbrk from the kernel's brk value.  That way two
+     separate instances of __brk and __sbrk can share the heap, returning
+     interleaved pieces of it.  This happens when libc.so is loaded by
+     dlopen in a statically-linked program that already uses __brk.  */
+  if (__brk (0) < 0)
     return (void *) -1;
 
   if (increment == 0)
diff --git a/sysdeps/generic/sys/socket.h b/sysdeps/generic/sys/socket.h
index 759ff3b9b2..6ee3ebe52e 100644
--- a/sysdeps/generic/sys/socket.h
+++ b/sysdeps/generic/sys/socket.h
@@ -321,6 +321,10 @@ extern int accept __P ((int __fd, __SOCKADDR_ARG __addr,
 extern int shutdown __P ((int __fd, int __how));
 
 
+/* Determine whether FILDES if the property identified by the value if
+   FDTYPE.  */
+extern int isfdtype __P ((int __fildes, int __fdtype));
+
 __END_DECLS
 
 #endif /* sys/socket.h */
diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
index 649a2a4c49..9b54b5f04a 100644
--- a/sysdeps/posix/fpathconf.c
+++ b/sysdeps/posix/fpathconf.c
@@ -136,6 +136,14 @@ DEFUN(__fpathconf, (fd, name), int fd AND int name)
 #else
       return -1;
 #endif
+
+    case _PC_SOCK_MAXBUF:
+#ifdef	SOCK_MAXBUF
+      return SOCK_MAXBUF;
+#else
+      errno = ENOSYS;
+      return -1;
+#endif
     }
 
   errno = ENOSYS;
diff --git a/sysdeps/posix/isfdtype.c b/sysdeps/posix/isfdtype.c
new file mode 100644
index 0000000000..9ac38a8b9f
--- /dev/null
+++ b/sysdeps/posix/isfdtype.c
@@ -0,0 +1,37 @@
+/* isfdtype - Determine whether descriptor has given property.
+Copyright (C) 1996 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
+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 <sys/stat.h>
+#include <sys/socket.h>
+
+int
+isfdtype (int fildes, int fdtype)
+{
+  struct stat st;
+  int result;
+
+  {
+    int save_error = errno;
+    result = fstat (fildes, &st);
+    errno = save_error;
+  }
+
+  return result ?: (st.st_mode & S_IFMT) == fdtype;
+}
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index a52258fee2..f0dbc23606 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -336,6 +336,104 @@ DEFUN(__sysconf, (name), int name)
       return -1;
 #endif
 
+    case _SC_PII:
+#ifdef	_POSIX_PII
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_XTI:
+#ifdef	_POSIX_PII_XTI
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_SOCKET:
+#ifdef	_POSIX_PII_SOCKET
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_INTERNET:
+#ifdef	_POSIX_PII_INTERNET
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI:
+#ifdef	_POSIX_PII_OSI
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_POLL:
+#ifdef	_POSIX_POLL
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SELECT:
+#ifdef	_POSIX_SELECT
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_UIO_MAXIOV:
+#ifdef	UIO_MAXIOV
+      return UIO_MAXIOV;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_INTERNET_STREAM:
+#ifdef	_POSIX_PII_INTERNET_STREAM
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_INTERNET_DGRAM:
+#ifdef	_POSIX_PII_INTERNET_DGRAM
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI_COTS:
+#ifdef	_POSIX_PII_OSI_COTS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI_CLTS:
+#ifdef	_POSIX_PII_OSI_CLTS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI_M:
+#ifdef	_POSIX_PII_OSI_M
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_T_IOV_MAX:
+#ifdef	_T_IOV_MAX
+      return _T_IOV_MAX;
+#else
+      return -1;
+#endif
+
     case _SC_2_VERSION:
       /* This is actually supposed to return the version
 	 of the 1003.2 utilities on the system {POSIX2_VERSION}.  */
diff --git a/sysdeps/stub/fpathconf.c b/sysdeps/stub/fpathconf.c
index 4f1f1d4a1d..75880fd647 100644
--- a/sysdeps/stub/fpathconf.c
+++ b/sysdeps/stub/fpathconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996 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
@@ -44,6 +44,7 @@ DEFUN(__fpathconf, (fd, name), int fd AND int name)
     case _PC_NAME_MAX:
     case _PC_PATH_MAX:
     case _PC_PIPE_BUF:
+    case _PC_SOCK_MAXBUF:
     case _PC_CHOWN_RESTRICTED:
     case _PC_NO_TRUNC:
     case _PC_VDISABLE:
diff --git a/sysdeps/stub/isfdtype.c b/sysdeps/stub/isfdtype.c
new file mode 100644
index 0000000000..560efd83fc
--- /dev/null
+++ b/sysdeps/stub/isfdtype.c
@@ -0,0 +1,29 @@
+/* isfdtype - Determine whether descriptor has given property.  Stub version.
+Copyright (C) 1996 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
+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 <sys/stat.h>
+
+
+int
+isfdtype (int fildes, int fdtype)
+{
+  errno = ENOSYS;
+  return -1;
+}
+stub_warning (isfdtype)
diff --git a/sysdeps/stub/sysconf.c b/sysdeps/stub/sysconf.c
index fc9ee84d13..816724ef52 100644
--- a/sysdeps/stub/sysconf.c
+++ b/sysdeps/stub/sysconf.c
@@ -59,6 +59,20 @@ DEFUN(__sysconf, (name), int name)
     case _SC_SHARED_MEMORY_OBJECTS:
     case _SC_VERSION:
 
+    case _SC_PII:
+    case _SC_PII_XTI:
+    case _SC_PII_SOCKET:
+    case _SC_PII_OSI:
+    case _SC_POLL:
+    case _SC_SELECT:
+    case _SC_UIO_MAXIOV:
+    case _SC_PII_INTERNET_STREAM:
+    case _SC_PII_INTERNET_DGRAM:
+    case _SC_PII_OSI_COTS:
+    case _SC_PII_OSI_CLTS:
+    case _SC_PII_OSI_M:
+    case _SC_T_IOV_MAX:
+
     case _SC_BC_BASE_MAX:
     case _SC_BC_DIM_MAX:
     case _SC_BC_SCALE_MAX:
diff --git a/sysdeps/unix/sysv/linux/posix_opt.h b/sysdeps/unix/sysv/linux/posix_opt.h
index d336335fc3..c1ff431fc9 100644
--- a/sysdeps/unix/sysv/linux/posix_opt.h
+++ b/sysdeps/unix/sysv/linux/posix_opt.h
@@ -47,6 +47,12 @@ Boston, MA 02111-1307, USA.  */
 /* Setting of memory protections is supported.  */
 #define	_POSIX_MEMORY_PROTECTION	1
 
+/* Implementation supports `poll' function.  */
+#define	_POSIX_POLL	1
+
+/* Implementation supports `select' and `pselect' functions.  */
+#define	_POSIX_SELECT	1
+
 /* Only root can change owner of file.  */
 #define	_POSIX_CHOWN_RESTRICTED	1