Update.cvs/libc-ud-970819

1997-08-20 05:30  Ulrich Drepper  <drepper@cygnus.com>

	* catgets/catgets.c (catclose): Use __munmap instead of munmap.
	* catgets/gencat.c (read_input_file): Fix typo.

	* dirent/dirent.h: Make seekdir and telldir available for __USE_XOPEN.

	* elf/dl-load.c: Fix case of missing DT_RPATH in object which gets
	executed (e.g., when it is a static binary).

	* intl/bindtextdomain.c: Use strdup in glibc.  Correct comment.
	* intl/dcgettext.c: Likewise.
	* intl/dgettext.c: Likewise.
	* intl/explodename.c: Likewise.
	* intl/finddomain.c: Likewise.
	* intl/gettext.c: Likewise.
	* intl/gettext.h: Likewise.
	* intl/hash-string.h: Likewise.
	* intl/l10nflist.c: Likewise.
	* intl/libintl.h: Likewise.
	* intl/loadinfo.h: Likewise.
	* intl/loadmsgcat.c: Likewise.
	* intl/localealias.c: Likewise.
	* intl/textdomain.c: Likewise.

	Unify libio sources with code in libg++.
	* libio/fcloseall.c: Update and reformat copyright.  Protect use
	of weak_alias.  Use _IO_* thread macros instead of __libc_*.
	* libio/feof.c: Likewise.
	* libio/feof_u.c: Likewise.
	* libio/ferror.c: Likewise.
	* libio/ferror_u.c: Likewise.
	* libio/fgetc.c: Likewise.
	* libio/filedoalloc.c: Likewise.
	* libio/fileno.c: Likewise.
	* libio/fileops.c: Likewise.
	* libio/fputc.c: Likewise.
	* libio/fputc_u.c: Likewise.
	* libio/freopen.c: Likewise.
	* libio/fseek.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/getc.c: Likewise.
	* libio/getc_u.c: Likewise.
	* libio/getchar.c: Likewise.
	* libio/getchar_u.c: Likewise.
	* libio/iofclose.c: Likewise.
	* libio/iofdopen.c: Likewise.
	* libio/iofflush.c: Likewise.
	* libio/iofflush_u.c: Likewise.
	* libio/iofgetpos.c: Likewise.
	* libio/iofgets.c: Likewise.
	* libio/iofopen.c: Likewise.
	* libio/iofopncook.c: Likewise.
	* libio/iofprintf.c: Likewise.
	* libio/iofputs.c: Likewise.
	* libio/iofread.c: Likewise.
	* libio/iofsetpos.c: Likewise.
	* libio/ioftell.c: Likewise.
	* libio/iofwrite.c: Likewise.
	* libio/iogetdelim.c: Likewise.
	* libio/iogetline.c: Likewise.
	* libio/iogets.c: Likewise.
	* libio/iopadn.c: Likewise.
	* libio/iopopen.c: Likewise.
	* libio/ioputs.c: Likewise.
	* libio/ioseekoff.c: Likewise.
	* libio/ioseekpos.c: Likewise.
	* libio/iosetbuffer.c: Likewise.
	* libio/iosetvbuf.c: Likewise.
	* libio/iosprintf.c: Likewise.
	* libio/ioungetc.c: Likewise.
	* libio/iovdprintf.c: Likewise.
	* libio/iovsprintf.c: Likewise.
	* libio/iovsscanf.c: Likewise.
	* libio/libio.h: Likewise.
	* libio/libioP.h: Likewise.
	* libio/obprintf.c: Likewise.
	* libio/pclose.c: Likewise.
	* libio/peekc.c: Likewise.
	* libio/putc.c: Likewise.
	* libio/putchar.c: Likewise.
	* libio/rewind.c: Likewise.
	* libio/setbuf.c: Likewise.
	* libio/setlinebuf.c: Likewise.
	* libio/stdfiles.c: Likewise.
	* libio/stdio.c: Likewise.
	* libio/strfile.h: Likewise.
	* libio/strops.c: Likewise.
	* libio/vasprintf.c: Likewise.
	* libio/vscanf.c: Likewise.
	* libio/vsnprintf.c: Likewise.

	* manual/libc.texinfo: Add menu entries for chapter on message
	translation.
	* manual/locale.texi: Correct next entry in @node for new chapter.
	* manual/search.texi: Likewise for previous link.
	* manual/message.texi: New file.
	* manual/startup.texi: Document LC_ALL, LC_MESSAGES, NLSPATH,
	setenv, unsetenv, and clearenv.
	* manual/string.texi: Fix typos.  Patch by Jim Meyering.

	* math/Makefile (test-longdouble-yes): Enable.  We want long double
	tests now.

	Crusade against strcat.
	* nis/nss_nisplus/nisplus-publickey.c: Remove uses of strcat.
	* stdlib/canonicalize.c: Likewise.

	* posix/glob.h: Define __const if necessary.  Use __const in all
	prototypes.

	* sysdeps/generic/stpcpy.c: Use K&R form to allow use in other
	GNU packages.

	* posix/wordexp.c: Completely reworked buffer handling for much
	better performance.  Patch by Tim Waugh.

	* socket/sys/sochet.h (getpeername): Fix type of LEN parameter,
	it must be socklen_t.

	* sysdeps/libm-i387/e_remainder.S: Pretty print.
	* sysdeps/libm-i387/e_remainderf.S: Likewise.
	* sysdeps/libm-i387/e_remainderl.S: Pop extra value for FPU stack.
	* sysdeps/libm-i387/s_cexp.S: Little optimization.
	* sysdeps/libm-i387/s_cexpl.S: Likewise.
	* sysdep/libm-ieee754/s_csinhl.c: Include <fenv.h>.

1997-08-18 15:21  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/if_index.c (if_nameindex): Fix memory leak
	in cleanup code.

1997-08-17  Paul Eggert  <eggert@twinsun.com>

	* tzset.c (__tzset_internal): Fix memory leak when the user
	specifies a TZ value that uses a default rule file.
	Do not assume US DST rules when the user specifies
	that there is no DST.

1997-08-10 19:17  Philip Blundell  <Philip.Blundell@pobox.com>

	* inet/getnameinfo.c: Tidy up.
	* sysdeps/posix/getaddrinfo.c: Likewise.

	* sysdeps/unix/sysv/linux/if_index.c (if_nametoindex): Return 0 if
	using stub code.
	(if_indextoname): Use SIOGIFNAME ioctl if the kernel supports it.
	(if_nameindex): Use alloca() rather than malloc(); use
	SIOCGIFCOUNT ioctl if the kernel supports it.

1997-08-16  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/sys/mount.h: Remove the IS_* macros,
	they operate on internal kernel structures and have no place in a
	user header.

1997-08-16  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules (lib%.so): Depend on $(+preinit) and $(+postinit).
	(build-shlib): Filter them out of $^.

1997-08-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-error.c (_dl_signal_error): Fix error message.

1997-08-16 04:06  Ulrich Drepper  <drepper@cygnus.com>

	* assert/assert.h [__USE_GNU]: Undefine assert_perror.
	Reported by Theodore C. Belding <Ted.Belding@umich.edu>.

1997-08-13  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig: Change object suffixes from *.[spgb]o to *.o[spgb]
	to avoid conflict with PO files.
	* Makerules: Likewise.
	* Rules: Likewise.
	* elf/Makefile: Likewise.
	* extra-lib.mk: Likewise.
	* gmon/Makefile: Likewise.
	* nis/Makefile: Likewise.
	* nss/Makefile: Likewise.
	* resolv/Makefile: Likewise.
	* rpm/Makefile: Likewise.
	* sunrpc/Makefile: Likewise.
	* sysdeps/sparc/elf/Makefile: Likewise.
	* sysdeps/sparc64/elf/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sparc/Makefile: Likewise.
	(ASFLAGS-.os): Renamed from as-FLAGS.os.

1 files changed, 79 insertions, 6 deletions

diff --git a/manual/startup.texi b/manual/startup.texi
index e61a755456..fab74edbef 100644
--- a/manual/startup.texi
+++ b/manual/startup.texi
@@ -278,9 +278,9 @@ character, since this is assumed to terminate the string.
 
 @menu
 * Environment Access::          How to get and set the values of
-			   environment variables.
+				 environment variables.
 * Standard Environment::        These environment variables have
-			   standard interpretations.
+                		 standard interpretations.
 @end menu
 
 @node Environment Access
@@ -290,7 +290,9 @@ character, since this is assumed to terminate the string.
 
 The value of an environment variable can be accessed with the
 @code{getenv} function.  This is declared in the header file
-@file{stdlib.h}.
+@file{stdlib.h}.  All of the following functions can be safely used in
+multi-threaded programs.  It is made sure that concurrent modifications
+to the environment do not lead to errors.
 @pindex stdlib.h
 
 @comment stdlib.h
@@ -314,11 +316,62 @@ definition is added to the environment.  Otherwise, the @var{string} is
 interpreted as the name of an environment variable, and any definition
 for this variable in the environment is removed.
 
-The GNU library provides this function for compatibility with SVID; it
-may not be available in other systems.
+This function is part of the extended Unix interface.  Since it was also
+available in old SVID libraries you should define either
+@var{_XOPEN_SOURCE} or @var{_SVID_SOURCE} before including any header.
+@end deftypefun
+
+
+@comment stdlib.h
+@comment BSD
+@deftypefun int setenv (const char *@var{name}, const char *@var{value}, int @var{replace})
+The @code{setenv} function can be used to add a new definition to the
+environment.  The entry with the name @var{name} is replaced by the
+value @samp{@var{name}=@var{value}}.  Please note that this is also true
+if @var{value} is the empty string.  A null pointer for the @var{value}
+parameter is illegal.  If the environment already contains an entry with
+key @var{name} the @var{replace} parameter controls the action.  If
+replace is zero, nothing happens.  otherwise the old entry is replaced
+by the new one.
+
+Please note that you cannot remove an entry completely using this function.
+
+This function is part of the BSD library.  The GNU C Library provides
+this function for compatibility but it may not be available on other
+systems.
+@end deftypefun
+
+@comment stdlib.h
+@comment BSD
+@deftypefun void unsetenv (const char *@var{name})
+Using this function one can remove an entry completely from the
+environment.  If the environment contains an entry with the key
+@var{name} this whole entry is removed.  A call to this function is
+equivalent to a call to @code{putenv} when the @var{value} part of the
+string is empty.
+
+This function is part of the BSD library.  The GNU C Library provides
+this function for compatibility but it may not be available on other
+systems.
+@end deftypefun
+
+There is one more function to modify the whole environment.  This
+function is said to be used in the POSIX.9 (POSIX bindings for Fortran
+77) and so one should expect it did made it into POSIX.1.  But this
+never happened.  But we still provide this function as a GNU extension
+to enable writing standard compliant Fortran environments.
+
+@comment stdlib.h
+@comment GNU
+@deftypefun int clearenv (void)
+The @code{clearenv} function removes all entries from the environment.
+Using @code{putenv} and @code{setenv} new entries can be added again
+later.
+
+If the function is successful it returns @code{0}.  Otherwise the return
+value is nonzero.
 @end deftypefun
 
-@c !!! BSD function setenv
 
 You can deal directly with the underlying representation of environment
 objects to add more variables to the environment (for example, to
@@ -444,6 +497,14 @@ attribute category environment variables, or for the @code{LANG}
 environment variable.
 @end ignore
 
+@item LC_ALL
+@cindex LC_ALL environment variable
+
+If this environment variable is set it overrides the selection for all
+the locales done using the other @code{LC_*} environment variables.  The
+value of the other @code{LC_*} environment variables is simply ignored
+in this case.
+
 @item LC_COLLATE
 @cindex LC_COLLATE environment variable
 
@@ -455,6 +516,12 @@ This specifies what locale to use for string sorting.
 This specifies what locale to use for character sets and character
 classification.
 
+@item LC_MESSAGES
+@cindex LC_MESSAGES environment variable
+
+This specifies what locale to use for printing messages and to parse
+reponses.
+
 @item LC_MONETARY
 @cindex LC_MONETARY environment variable
 
@@ -470,6 +537,12 @@ This specifies what locale to use for formatting numbers.
 
 This specifies what locale to use for formatting date/time values.
 
+@item NLSPATH
+@cindex NLSPATH environment variable
+
+This specifies the directories in which the @code{catopen} function
+looks for message translation catalogs.
+
 @item _POSIX_OPTION_ORDER
 @cindex _POSIX_OPTION_ORDER environment variable.