Tue May 7 19:00:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

	* string/argz-extract.c: Remove const from decl.
	* string/argz.h: Here too.

	* Makeconfig (version.mk): Fix regexp in sed cmd.
	Depend on $(..)Makeconfig.

	* GMP code updated from gmp-2.0 release.
	* stdlib/Makefile (mpn-routines): Removed add_1, added inlines.
	* sysdeps/generic/add_1.c: File removed.
	* stdlib/strtod.c: mp_limb is now mp_limb_t.
	* stdlib/fpioconst.c, stdlib/fpioconst.h: Likewise.
	* stdio-common/_itoa.c: Likewise.
	* stdio-common/printf_fp.c: Likewise.
	Don't include ansidecl.h.

	* sysdeps/mach/hurd/getcwd.c: Use io_identity instead of io_stat.

	* shlib-versions: New file.
	* Makerules (soversions.mk): New target, include file generated from
	shlib-versions.  Moved shared library rules before installation rules.
	Rewrote shared library installation rules for versioned libraries.
	* math/Makefile (libm.so-version): Variable removed.

	* sysdeps/mach/hurd/i386/exc2signal.c: Use struct hurd_signal_detail.

	* hurd/report-wait.c (_S_msg_describe_ports): New function.

	* configure.in: Add AC_PROG_LN_S check.
	* config.make.in (LN_S): New variable.

Sun May  5 03:10:44 1996  Ulrich Drepper  <drepper@cygnus.com>

	* misc/efgcvt_r.c (ecvt_r): Work aroung gcc bug.  gcc does
	not know about weak aliases now and optimizes necessary `if'
	statement away.

	* posix/unistd.h: Add swapoff prototype.

	* sysdeps/generic/confname.h: Add even more POSIX.4 symbols.

	* sysdeps/posix/fpathconf.c (__fpathconf): Get information
	for _PC_PATH_MAX from fstatfs function if available.

	* sysdeps/posix/sysconf.c: Add code to handle _SC_AIO_LISTIO_MAX,
	_SC_AIO_MAX, _SC_AIO_PRIO_DELTA_MAX, _SC_DELAYTIMER_MAX,
	_SC_MQ_OPEN_MAX, _SC_MQ_PRIO_MAX, _SC_RTSIG_MAX,
	_SC_SEM_NSEMS_MAX, _SC_SEM_VALUE_MAX, _SC_SIGQUEUE_MAX, and
	_SC_TIMER_MAX.
	* sysdeps/unix/sysv/sysv4/sysconf.c: Ditto.

	* sysdeps/stub/swapoff.c: New file.  Stub version for swapoff
	function.

	* sysdeps/unix/syscalls.list:  Add swapoff.

	* sysdeps/unix/sysv/linux/Dist: Add sys/acct.h.

	* sysdeps/unix/sysv/linux/Makefile [$(subdir) == misc]
	(sysdep_routines): Add mount, umount, llseek, setfsgid, setfsuid,
	sysinfo, and uselib.
	(headers): Add sys/sysinfo.h.

	* sysdeps/unix/sysv/linux/gethostid.c: Prevent warning.

	* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == misc]
	(sysdep_routines): Add ioperm, iopl, and vm86.
	(headers): Add sys/perm.h and sys/vm86.h.

	* sysdeps/unix/sysv/linux/i386/sys/perm.h: New file.  Contains
	prototypes for iopl and ioperm.

	* sysdeps/unix/sysv/linux/i386/sys/vm86.h:  New file.  Contains
	prototype for vm86.

	* sysdeps/unix/sysv/linux/i386/syscalls.list: New file.  Add
	vm86 system call.

	* sysdeps/unix/sysv/linux/sys/acct.h: New file.  Contains
	prototypes for acct function.

	* sysdeps/unix/sysv/linux/sys/socket.h: Provide real header
	file with prototypes.

	* sysdeps/unix/sysv/linux/sys/sysinfo.h: New file.  Contains
	prototype for sysinfo function.

	* sysdeps/unix/sysv/linux/syscalls.list: Add flock, ioperm, iopl,
	llseek, setfsgid, setfsuid, sysinfo, and uselib.

	* sysdeps/unix/sysv/linux/sysconf.c: Instead of duplicating
	posix/sysconf.c now only handle cases different to that
	implementation.

Tue May  7 15:08:19 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (__line_wrap_output): Renamed from lwoutput
	(all references changed).  Now exported.

	* stdio/linewrap.c (struct data): Type deleted (moved to linewrap.h).
	(wrap_stream, unwrap_stream, lwclose, lwfileno, lwoutput,
	line_wrap_stream, line_unwrap_stream): Use struct line_wrap_data
	instead of struct data.
	(lwoutput, line_wrap_stream, line_unwrap_stream): Rename various
	occurences of `wrap' and `wrapmargin' to `wmargin'.
	(line_wrapped, line_wrap_lmargin, line_wrap_set_lmargin,
	line_wrap_rmargin, line_wrap_set_rmargin, line_wrap_wmargin,
	line_wrap_set_wmargin, line_wrap_point): New functions.
	* stdio/linewrap.h: New file.
	* stdio/Makefile (headers): Add linewrap.h.

Tue May  7 14:19:12 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* sysdeps/unix/sysv/linux/i386/Makefile: File removed.

	* stdio/stdio.h: Remove line_wrap_stream, line_unwap_stream decls.

	* sysdeps/unix/sysv/linux/schedbits.h: New file.

Tue May  7 13:47:02 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (struct data): Make margin fields not-pointers.
	(lwoutput): Adjust uses acordingly.

	* sysdeps/mach/hurd/fdatasync.c: New file.
	* sysdeps/mach/hurd/fsync.c: Pass new flag to file_sync.

	* sysdeps/mach/hurd/xmknod.c: Pass new flag to dir_link.
	* sysdeps/mach/hurd/symlink.c: Likewise.
	* sysdeps/mach/hurd/link.c: Likewise.
	* sysdeps/mach/hurd/bind.c: Likewise.
	* hurd/hurdsig.c (write_corefile): Likewise.

	* hurd/hurdsig.c (write_corefile): Pass cttyid port to crash server.

	* sysdeps/mach/hurd/fpathconf.c: RPC takes int pointer, not long int.

	* sysdeps/mach/hurd/_exit.c (_hurd_exit): Pass sigcode arg to
	proc_mark_exit.
	* sysdeps/mach/hurd/dl-sysdep.c (_exit): Likewise.

	* sysdeps/mach/hurd/wait4.c: Pass sigcode arg to proc_wait.

	* sysdeps/mach/hurd/rename.c: Pass new flag to dir_rename.

	* hurd/hurdfault.c (_hurdsig_fault_catch_exception_raise): Use struct
	hurd_signal_detail.
	* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
	* hurd/hurd-raise.c (_hurd_raise_signal): Likewise.
	* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
	Likewise.
	* sysdeps/mach/hurd/setitimer.c (restart_itimer): Likewise.

	* hurd/hurd/signal.h: Fix _hurd_exception2signal prototype.

	* hurd/hurdsig.c (write_corefile): Take const struct
	hurd_signal_detail * arg.  Pass all details to crash_dump_task.
	(_hurd_internal_post_signal): Pass DETAIL to write_corefile.
	(_hurd_internal_post_signal: suspend): Pass code and error to
	proc_mark_stop.

	* hurd/hurdprio.c (_hurd_priority_which_map): Pass flags arg to
	proc_getprocinfo by reference.

1 files changed, 127 insertions, 56 deletions

diff --git a/stdio/linewrap.c b/stdio/linewrap.c
index e821cc3575..7f6576f29b 100644
--- a/stdio/linewrap.c
+++ b/stdio/linewrap.c
@@ -22,42 +22,27 @@ Cambridge, MA 02139, USA.  */
 #include <string.h>
 #include <stdlib.h>
 
-/* We keep this data for each line-wrapping stream.  */
-
-struct data
-  {
-    const size_t *lmargin, *rmargin; /* Left and right margins.  */
-    const size_t *wrapmargin;	/* Margin to wrap to, or null to truncate.  */
-    size_t point;		/* Current column of last chars flushed.  */
-
-    /* Original cookie and hooks from the stream.  */
-    void *cookie;
-    void (*output) (FILE *, int);
-    __io_close_fn *close;
-    __io_fileno_fn *fileno;
-    __io_seek_fn *seek;
-  };
+#include <linewrap.h>
+
+void __line_wrap_output (FILE *, int);
 
 /* Install our hooks into a stream.  */
-
 static inline void
-wrap_stream (FILE *stream, struct data *d)
+wrap_stream (FILE *stream, struct line_wrap_data *d)
 {
-  static void lwoutput (FILE *, int);
   static __io_close_fn lwclose;
   static __io_fileno_fn lwfileno;
 
   stream->__cookie = d;
-  stream->__room_funcs.__output = &lwoutput;
+  stream->__room_funcs.__output = &__line_wrap_output;
   stream->__io_funcs.__close = &lwclose;
   stream->__io_funcs.__fileno = &lwfileno;
   stream->__io_funcs.__seek = NULL; /* Cannot seek.  */
 }
 
 /* Restore a stream to its original state.  */
-
 static inline void
-unwrap_stream (FILE *stream, struct data *d)
+unwrap_stream (FILE *stream, struct line_wrap_data *d)
 {
   stream->__cookie = d->cookie;
   stream->__room_funcs.__output = d->output;
@@ -72,41 +57,40 @@ unwrap_stream (FILE *stream, struct data *d)
 static int
 lwclose (void *cookie)
 {
-  struct data *d = cookie;
+  struct line_wrap_data *d = cookie;
   return (*d->close) (d->cookie);
 }
 
 static int
 lwfileno (void *cookie)
 {
-  struct data *d = cookie;
+  struct line_wrap_data *d = cookie;
   return (*d->fileno) (d->cookie);
 }
 
 /* This function is called when STREAM must be flushed.
    C is EOF or a character to be appended to the buffer contents.  */
-
-static void
-lwoutput (FILE *stream, int c)
+void
+__line_wrap_output (FILE *stream, int c)
 {
   char *buf, *nl;
   size_t len;
 
   /* Extract our data and restore the stream's original cookie
      and output function so writes we do really go out.  */
-  struct data *d = stream->__cookie;
+  struct line_wrap_data *d = stream->__cookie;
   unwrap_stream (stream, d);
 
   /* Scan the buffer for newlines.  */
-  for (buf = stream->__buffer;
-       (buf < stream->__bufp || (c != EOF && c != '\n')) && !stream->__error)
+  buf = stream->__buffer;
+  while ((buf < stream->__bufp || (c != EOF && c != '\n')) && !stream->__error)
     {
       size_t r;
 
-      if (d->point == 0 && d->lmargin && *d->lmargin != 0)
+      if (d->point == 0 && d->lmargin != 0)
 	{
 	  /* We are starting a new line.  Print spaces to the left margin.  */
-	  const size_t pad = *d->lmargin;
+	  const size_t pad = d->lmargin;
 	  if (stream->__bufp + pad < stream->__put_limit)
 	    {
 	      /* We can fit in them in the buffer by moving the
@@ -141,8 +125,7 @@ lwoutput (FILE *stream, int c)
 	{
 	  /* The buffer ends in a partial line.  */
 
-	  if (!d->rmargin ||
-	      d->point + len + (c != EOF && c != '\n') <= d->rmargin)
+	  if (d->point + len + (c != EOF && c != '\n') <= d->rmargin)
 	    {
 	      /* The remaining buffer text is a partial line and fits
 		 within the maximum line width.  Advance point for the
@@ -155,7 +138,7 @@ lwoutput (FILE *stream, int c)
 	       the end of the buffer.  */
 	    nl = stream->__bufp;
 	}
-      else if (!d->rmargin || d->point + (nl - buf) <= d->rmargin)
+      else if (d->point + (nl - buf) <= d->rmargin)
 	{
 	  /* The buffer contains a full line that fits within the maximum
 	     line width.  Reset point and scan the next line.  */
@@ -165,9 +148,9 @@ lwoutput (FILE *stream, int c)
 	}
 
       /* This line is too long.  */
-      r = *d->rmargin;
+      r = d->rmargin;
 
-      if (! d->wrapmargin)
+      if (d->wmargin < 0)
 	{
 	  /* Truncate the line by overwriting the excess with the
 	     newline and anything after it in the buffer.  */
@@ -242,7 +225,7 @@ lwoutput (FILE *stream, int c)
 
 	  /* Temporarily reset bufp to include just the first line.  */
 	  stream->__bufp = nl;
-	  if (nextline - (nl + 1) < d->wrap)
+	  if (nextline - (nl + 1) < d->wmargin)
 	    /* The margin needs more blanks than we removed.
 	       Output the first line so we can use the space.  */
 	    (*d->output) (stream, '\n');
@@ -255,7 +238,7 @@ lwoutput (FILE *stream, int c)
 	  d->point = 0;
 
 	  /* Add blanks up to the wrap margin column.  */
-	  for (i = 0; i < d->wrap; ++i)
+	  for (i = 0; i < d->wmargin; ++i)
 	    *stream->__bufp++ = ' ';
 
 	  /* Copy the tail of the original buffer into the current buffer
@@ -284,19 +267,16 @@ lwoutput (FILE *stream, int c)
   wrap_stream (stream, d);
 }
 
-/* Modify STREAM so that it prefixes lines written on it with *LMARGIN
-   spaces and limits them to *RMARGIN columns total.  If WRAP is not null,
-   words that extend past *RMARGIN are wrapped by replacing the whitespace
-   before them with a newline and *WRAP spaces.  Otherwise, chars beyond
-   *RMARGIN are simply dropped until a newline.  Returns STREAM after
-   modifying it, or NULL if there was an error.  The pointers passed are
-   stored in the stream and so must remain valid until `line_unwrap_stream'
-   is called; the values pointed to can be changed between stdio calls.  */
-
+/* Modify STREAM so that it prefixes lines written on it with LMARGIN spaces
+   and limits them to RMARGIN columns total.  If WMARGIN >= 0, words that
+   extend past RMARGIN are wrapped by replacing the whitespace before them
+   with a newline and WMARGIN spaces.  Otherwise, chars beyond RMARGIN are
+   simply dropped until a newline.  Returns STREAM after modifying it, or
+   NULL if there was an error.  */
 FILE *
-line_wrap_stream (FILE *stream, size_t *lmargin, size_t *rmargin, size_t *wrap)
+line_wrap_stream (FILE *stream, size_t lmargin, size_t rmargin, size_t wmargin)
 {
-  struct data *d = malloc (sizeof *d);
+  struct line_wrap_data *d = malloc (sizeof *d);
 
   if (!d)
     return NULL;
@@ -321,25 +301,116 @@ line_wrap_stream (FILE *stream, size_t *lmargin, size_t *rmargin, size_t *wrap)
      to work if the stream is switched to full or no buffering.  */
   stream->__linebuf = 1;
 
-#define	ref(arg)	d->arg = arg
-  ref (lmargin);
-  ref (rmargin);
-  ref (wrap);
-#undef	ref
+  d->lmargin = lmargin;
+  d->rmargin = rmargin;
+  d->wmargin = wmargin;
 
   return stream;
 }
 
 /* Remove the hooks placed in STREAM by `line_wrap_stream'.  */
-
 void
 line_unwrap_stream (FILE *stream)
 {
-  struct data *d = stream->__cookie;
+  struct line_wrap_data *d = stream->__cookie;
   unwrap_stream (stream, d);
   free (d);
 }
 
+/* Functions on wrapped streams.  */
+
+/* Returns true if STREAM is line wrapped.  */
+inline int
+line_wrapped (FILE *stream)
+{
+  return (stream->__room_funcs.__output == &__line_wrap_output);
+}
+
+/* If STREAM is not line-wrapped return -1, else return its left margin.  */
+size_t
+line_wrap_lmargin (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->lmargin;
+}
+
+/* If STREAM is not line-wrapped return -1, else set its left margin to
+   LMARGIN and return the old value.  */
+size_t
+line_wrap_set_lmargin (FILE *stream, size_t lmargin)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  else
+    {
+      struct line_wrap_data *d = stream->__cookie;
+      size_t old = d->lmargin;
+      d->lmargin = lmargin;
+      return old;
+    }
+}
+
+/* If STREAM is not line-wrapped return -1, else return its left margin.  */
+size_t
+line_wrap_rmargin (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->rmargin;
+}
+
+/* If STREAM is not line-wrapped return -1, else set its right margin to
+   RMARGIN and return the old value.  */
+size_t
+line_wrap_set_rmargin (FILE *stream, size_t rmargin)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  else
+    {
+      struct line_wrap_data *d = stream->__cookie;
+      size_t old = d->rmargin;
+      d->rmargin = rmargin;
+      return old;
+    }
+}
+
+/* If STREAM is not line-wrapped return -1, else return its wrap margin.  */
+size_t
+line_wrap_wmargin (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->wmargin;
+}
+
+/* If STREAM is not line-wrapped return -1, else set its left margin to
+   WMARGIN and return the old value.  */
+size_t
+line_wrap_set_wmargin (FILE *stream, size_t wmargin)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  else
+    {
+      struct line_wrap_data *d = stream->__cookie;
+      size_t old = d->wmargin;
+      d->wmargin = wmargin;
+      return old;
+    }
+}
+
+/* If STREAM is not line-wrapped return -1, else return the column number of
+   the current output point.  */
+size_t
+line_wrap_point (FILE *stream)
+{
+  if (! line_wrapped (stream))
+    return -1;
+  return ((struct line_wrap_data *)stream->__cookie)->point;
+}
+
 #ifdef TEST
 int
 main (int argc, char **argv)