Update.cvs/libc-ud-970804

1997-08-04 15:29  Ulrich Drepper  <drepper@cygnus.com>

	* locale/programs/localedef.c (main): Set bit in avail for those
	categories which are successfully read.
	* locale/programs/locfile.c (check_all_categories): Don't check
	categories if they are not available.
	(write_all_categories): Don't write categories if they are not
	available.

	* login/setutent_r.c (setutent_unknown): Change return type to
	int and return result of called function.

	* manual/arith.texi: Mark floating-point test macro from ISO C 9X
	as macros (not functions).
	* manual/libc.texinfo (UPDATED): Update.
	* manual/math.texi: Document exceptions, functions to handle
	exceptions, mathematical constants, FP comparison functions
	and several new functions from ISO C 9X.
	Change parameter of drand48, lrand48, and mrand48 to void (not
	empty).
	* manual/pattern.texi: Remove paragraph which explained that wordexp
	is executed by running a shell.
	* manual/time.texi: Explain difficulties with strftime if the
	functions returns 0 and no error occurred.

	* math/math.h: Correct comment for some M_* constants.
	(isgreater, isgreaterequal, isless, islessequal, islessgreater,
	inunordered): Rewrite to make sure the arguments are evaluated
	exactly once.

	* nis/rpcsvc/nis.x: Undo last change.
	* nis/rpcsvc/nis.h: Likewise.
	* nis/rpcsvc/nislib.h: File moved back to here.

	* posix/sys/types.h: Don't define socklen_t.  Pretty print.
	* socket/sys/socket.h (bind, getsockname, connect, sendto, recvfrom,
	getsockopt, setsockopt, accept): Change size argument to type
	socklen_t.
	Pretty print.
	* manual/socket.texi: Describe socklen_t and change prototypes of
	socket functions to use socklen_t.
	* sysdeps/generic/bits/socket.h: Define socklen_t.
	(struct msghdr): Correct types to use socklen_t.
	* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.

	* stdio-common/printf_fp.c (__printf_fp): Correct rouding of number
	1.0 < x < 8.0.
	* stdio-common/tfformat.c: Add new tests for above bug.

	* stdlib/strtod.c: Fix typo.

	* string/Makefile (headers): Add bits/string.h.
	(CFLAGS-*): Add -D__NO_STRING_INLINES.
	* string/string.h: Include <bits/string.h> if optimizing and
	__NO_STRING_INLINES is not defined.
	* sysdeps/stub/bits/string.h: New file.

	* sysdeps/powerpc/bits/fenv.h: Fix typos.

	* sysdeps/unix/sysv/linux/if_index.c: Let functions return ENOSYS
	if SIOGIFINDEX is not defined.

	* sysdeps/wordsize-32/inttypes.h: Pretty print.
	* sysdeps/wordsize-64/inttypes.h: Pretty print.

	* termios/cfsetspeed.c: Rewrite loop to do what it shall do.

	* wcsmbs/Makefile (tests): Add tst-wcstof.
	* wcsmbs/tst-wcstof.c: New file.

1997-08-01  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/__longjmp.c: Replace call to abort by infinite
	loop, to avoid dragging stdio into the dynamic linker.

1997-08-02 19:44  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* nis/nis_findserv.c (xid, xid_seed, xid_lookup): Make them
	u_int32_t.

1997-08-03  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* posix/wordexp.c (parse_tilde): Fix calls to __getpwnam_r and
	__getpwuid_r.
	Include <stdio.h> to get prototypes of *printf.
	(exec_comm): Remove unneeded variable *sh.

	* libc.map: Add wordexp, wordfree.

	* posix/Makefile (routines): Add wordexp.

1997-08-03  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* posix/wordexp.c: Correct typo in comment.
	(wordexp): Likewise.

	* manual/errno.texi (Error Codes): Fix typo.

1997-08-03 15:28  Ulrich Drepper  <drepper@cygnus.com>

	* csu/initfini.c (SECTION): Don't put quotes around section name
	since this is not understood by all assemblers.
	Patch by Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de>.

1 files changed, 30 insertions, 8 deletions

diff --git a/manual/socket.texi b/manual/socket.texi
index cc39bec452..0353eb7ed3 100644
--- a/manual/socket.texi
+++ b/manual/socket.texi
@@ -128,6 +128,28 @@ protocol} which you can request by specifying 0 as the protocol
 number.  And that's what you should normally do---use the default.
 @end itemize
 
+Throughout the following description at various places
+variables/parameters to denote sizes are required.  And here the trouble
+starts.  In the first implementations the type of these variables was
+simply @code{int}.  This type was on almost all machines of this time 32
+bits wide and so a de-factor standard required 32 bit variables.  This
+is important since references to variables of this type are passed to
+the kernel.
+
+But now the POSIX people came and unified the interface with their words
+"all size values are of type @code{size_t}".  But on 64 bit machines
+@code{size_t} is 64 bits wide and so variable references are not anymore
+possible.
+
+A solution provides the Unix98 specification which finally introduces a
+type @code{socklen_t}.  This type is used in all of the cases in
+previously changed to use @code{size_t}.  The only requirement of this
+type is that it is an unsigned type of at least 32 bits.  Therefore,
+implementations which require references to 32 bit variables be passed
+can be as happy as implementations which right from the start of 64 bit
+values.
+
+
 @node Communication Styles
 @section Communication Styles
 
@@ -358,7 +380,7 @@ For examples of use, see @ref{File Namespace}, or see @ref{Inet Example}.
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int bind (int @var{socket}, struct sockaddr *@var{addr}, size_t @var{length})
+@deftypefun int bind (int @var{socket}, struct sockaddr *@var{addr}, socklen_t @var{length})
 The @code{bind} function assigns an address to the socket
 @var{socket}.  The @var{addr} and @var{length} arguments specify the
 address; the detailed format of the address depends on the namespace.
@@ -406,7 +428,7 @@ Internet socket.  The prototype for this function is in the header file
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int getsockname (int @var{socket}, struct sockaddr *@var{addr}, size_t *@var{length-ptr})
+@deftypefun int getsockname (int @var{socket}, struct sockaddr *@var{addr}, socklen_t *@var{length-ptr})
 The @code{getsockname} function returns information about the
 address of the socket @var{socket} in the locations specified by the
 @var{addr} and @var{length-ptr} arguments.  Note that the
@@ -1688,7 +1710,7 @@ program must do, using the @code{connect} function, which is declared in
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int connect (int @var{socket}, struct sockaddr *@var{addr}, size_t @var{length})
+@deftypefun int connect (int @var{socket}, struct sockaddr *@var{addr}, socklen_t @var{length})
 The @code{connect} function initiates a connection from the socket
 with file descriptor @var{socket} to the socket whose address is
 specified by the @var{addr} and @var{length} arguments.  (This socket
@@ -1833,7 +1855,7 @@ queue.
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int accept (int @var{socket}, struct sockaddr *@var{addr}, size_t *@var{length-ptr})
+@deftypefun int accept (int @var{socket}, struct sockaddr *@var{addr}, socklen_t *@var{length-ptr})
 This function is used to accept a connection request on the server
 socket @var{socket}.
 
@@ -2327,7 +2349,7 @@ more information about the @code{connect} function.
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int sendto (int @var{socket}, void *@var{buffer}. size_t @var{size}, int @var{flags}, struct sockaddr *@var{addr}, size_t @var{length})
+@deftypefun int sendto (int @var{socket}, void *@var{buffer}. size_t @var{size}, int @var{flags}, struct sockaddr *@var{addr}, socklen_t @var{length})
 The @code{sendto} function transmits the data in the @var{buffer}
 through the socket @var{socket} to the destination address specified
 by the @var{addr} and @var{length} arguments.  The @var{size} argument
@@ -2356,7 +2378,7 @@ also tells you where it was sent from.  This function is declared in
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int recvfrom (int @var{socket}, void *@var{buffer}, size_t @var{size}, int @var{flags}, struct sockaddr *@var{addr}, size_t *@var{length-ptr})
+@deftypefun int recvfrom (int @var{socket}, void *@var{buffer}, size_t @var{size}, int @var{flags}, struct sockaddr *@var{addr}, socklen_t *@var{length-ptr})
 The @code{recvfrom} function reads one packet from the socket
 @var{socket} into the buffer @var{buffer}.  The @var{size} argument
 specifies the maximum number of bytes to be read.
@@ -2583,7 +2605,7 @@ They are declared in @file{sys/socket.h}.
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int getsockopt (int @var{socket}, int @var{level}, int @var{optname}, void *@var{optval}, size_t *@var{optlen-ptr})
+@deftypefun int getsockopt (int @var{socket}, int @var{level}, int @var{optname}, void *@var{optval}, socklen_t *@var{optlen-ptr})
 The @code{getsockopt} function gets information about the value of
 option @var{optname} at level @var{level} for socket @var{socket}.
 
@@ -2613,7 +2635,7 @@ The @var{optname} doesn't make sense for the given @var{level}.
 
 @comment sys/socket.h
 @comment BSD
-@deftypefun int setsockopt (int @var{socket}, int @var{level}, int @var{optname}, void *@var{optval}, size_t @var{optlen})
+@deftypefun int setsockopt (int @var{socket}, int @var{level}, int @var{optname}, void *@var{optval}, socklen_t @var{optlen})
 This function is used to set the socket option @var{optname} at level
 @var{level} for socket @var{socket}.  The value of the option is passed
 in the buffer @var{optval}, which has size @var{optlen}.