Updated by gnulib-sync

 /* Declaration for error-reporting function
-   Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-
-   NOTE: The canonical source of this file is maintained with the GNU C Library.
-   Bugs can be reported to bug-glibc@prep.ai.mit.edu.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
 
    This program 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 General Public License for more details.
 
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-   USA.  */
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #ifndef _ERROR_H
 #define _ERROR_H 1
 
 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
 #  define __attribute__(Spec) /* empty */
 # endif
 /* The __-protected variants of `format' and `printf' attributes
@@ -40,17 +36,15 @@
 extern "C" {
 #endif
 
-#if defined (__STDC__) && __STDC__
-
 /* Print a message with `fprintf (stderr, FORMAT, ...)';
    if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
    If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
 
-extern void error (int status, int errnum, const char *format, ...)
+extern void error (int __status, int __errnum, const char *__format, ...)
      __attribute__ ((__format__ (__printf__, 3, 4)));
 
-extern void error_at_line (int status, int errnum, const char *fname,
-			   unsigned int lineno, const char *format, ...)
+extern void error_at_line (int __status, int __errnum, const char *__fname,
+			   unsigned int __lineno, const char *__format, ...)
      __attribute__ ((__format__ (__printf__, 5, 6)));
 
 /* If NULL, error will flush stdout, then print on stderr the program
@@ -58,12 +52,6 @@ extern void error_at_line (int status, int errnum, const char *fname,
    function without parameters instead.  */
 extern void (*error_print_progname) (void);
 
-#else
-void error ();
-void error_at_line ();
-extern void (*error_print_progname) ();
-#endif
-
 /* This variable is incremented each time `error' is called.  */
 extern unsigned int error_message_count;
 

-/* GNU Mailutils -- a suite of utilities for electronic mail
-   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2001, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-   This library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2 of the License, or (at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
 
-   This library is distributed in the hope that it will be useful,
+   This program 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
-   Lesser General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA  */
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
-#include  <stdio.h>
-#include  <string.h>
-#include  <stdlib.h>
-#include  <termios.h>
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
 
-/* Alain: Parts originally from GNU Lib C.  */
+#if !_LIBC
+# include "getpass.h"
+#endif
 
-static void
-echo_off(int fd, struct termios *stored_settings)
-{
-  struct termios new_settings;
-  tcgetattr (fd, stored_settings);
-  new_settings = *stored_settings;
-  new_settings.c_lflag &= (~ECHO);
-  tcsetattr (fd, TCSANOW, &new_settings);
-}
+#if _LIBC
+# define HAVE_STDIO_EXT_H 1
+#endif
+
+#include <stdbool.h>
+
+#include <stdio.h>
+#if HAVE_STDIO_EXT_H
+# include <stdio_ext.h>
+#else
+# define __fsetlocking(stream, type) /* empty */
+#endif
+#if !_LIBC
+# include "getline.h"
+#endif
+
+#include <termios.h>
+#include <unistd.h>
+
+#if _LIBC
+# include <wchar.h>
+#endif
+
+#if _LIBC
+# define NOTCANCEL_MODE "c"
+#else
+# define NOTCANCEL_MODE
+#endif
+
+#if _LIBC
+# define flockfile(s) _IO_flockfile (s)
+# define funlockfile(s) _IO_funlockfile (s)
+#elif USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#else
+# if !HAVE_DECL_FFLUSH_UNLOCKED
+#  undef fflush_unlocked
+#  define fflush_unlocked(x) fflush (x)
+# endif
+# if !HAVE_DECL_FLOCKFILE
+#  undef flockfile
+#  define flockfile(x) ((void) 0)
+# endif
+# if !HAVE_DECL_FUNLOCKFILE
+#  undef funlockfile
+#  define funlockfile(x) ((void) 0)
+# endif
+# if !HAVE_DECL_FPUTS_UNLOCKED
+#  undef fputs_unlocked
+#  define fputs_unlocked(str,stream) fputs (str, stream)
+# endif
+# if !HAVE_DECL_PUTC_UNLOCKED
+#  undef putc_unlocked
+#  define putc_unlocked(c,stream) putc (c, stream)
+# endif
+#endif
+
+#if _LIBC
+# include <bits/libc-lock.h>
+#else
+# define __libc_cleanup_push(function, arg) /* empty */
+# define __libc_cleanup_pop(execute) /* empty */
+#endif
+
+#if !_LIBC
+# define __getline getline
+# define __tcgetattr tcgetattr
+#endif
+
+/* It is desirable to use this bit on systems that have it.
+   The only bit of terminal state we want to twiddle is echoing, which is
+   done in software; there is no need to change the state of the terminal
+   hardware.  */
+
+#ifndef TCSASOFT
+# define TCSASOFT 0
+#endif
 
 static void
-echo_on(int fd, struct termios *stored_settings)
+call_fclose (void *arg)
 {
-  tcsetattr (fd, TCSANOW, stored_settings);
+  if (arg != NULL)
+    fclose (arg);
 }
 
 char *
-getpass (const char * prompt)
+getpass (const char *prompt)
 {
+  FILE *tty;
   FILE *in, *out;
-  struct termios stored_settings;
+  struct termios s, t;
+  bool tty_changed;
   static char *buf;
-  static size_t buf_size;
-  char *pbuf;
+  static size_t bufsize;
+  ssize_t nread;
+
+  /* Try to write to and read from the terminal if we can.
+     If we can't open the terminal, use stderr and stdin.  */
 
-  /* First pass initialize the buffer.  */
-  if (buf_size == 0)
+  tty = fopen ("/dev/tty", "w+" NOTCANCEL_MODE);
+  if (tty == NULL)
     {
-      buf_size = 256;
-      buf = calloc (1, buf_size);
-      if (buf == NULL)
-	return NULL;
+      in = stdin;
+      out = stderr;
     }
   else
-    memset (buf, '\0', buf_size);
+    {
+      /* We do the locking ourselves.  */
+      __fsetlocking (tty, FSETLOCKING_BYCALLER);
+
+      out = in = tty;
+    }
+
+  /* Make sure the stream we opened is closed even if the thread is
+     canceled.  */
+  __libc_cleanup_push (call_fclose, tty);
+
+  flockfile (out);
 
   /* Turn echoing off if it is on now.  */
-  echo_off (fileno (stdin), &stored_settings);
+
+  if (__tcgetattr (fileno (in), &t) == 0)
+    {
+      /* Save the old one. */
+      s = t;
+      /* Tricky, tricky. */
+      t.c_lflag &= ~(ECHO|ISIG);
+      tty_changed = (tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &t) == 0);
+    }
+  else
+    tty_changed = false;
 
   /* Write the prompt.  */
-  fputs (prompt, stdout);
-  fflush (stdout);
+#ifdef USE_IN_LIBIO
+  if (_IO_fwide (out, 0) > 0)
+    __fwprintf (out, L"%s", prompt);
+  else
+#endif
+    fputs_unlocked (prompt, out);
+  fflush_unlocked (out);
 
   /* Read the password.  */
-  pbuf = fgets (buf, buf_size, stdin);
-  if (pbuf)
+  nread = __getline (&buf, &bufsize, in);
+
+#if !_LIBC
+  /* As far as is known, glibc doesn't need this no-op fseek.  */
+
+  /* According to the C standard, input may not be followed by output
+     on the same stream without an intervening call to a file
+     positioning function.  Suppose in == out; then without this fseek
+     call, on Solaris, HP-UX, AIX, OSF/1, the previous input gets
+     echoed, whereas on IRIX, the following newline is not output as
+     it should be.  POSIX imposes similar restrictions if fileno (in)
+     == fileno (out).  The POSIX restrictions are tricky and change
+     from POSIX version to POSIX version, so play it safe and invoke
+     fseek even if in != out.  */
+  fseek (out, 0, SEEK_CUR);
+#endif
+
+  if (buf != NULL)
     {
-      size_t nread = strlen (pbuf);
-      if (nread && pbuf[nread - 1] == '\n')
-        {
-          /* Remove the newline.  */
-          pbuf[nread - 1] = '\0';
-	  /* Write the newline that was not echoed.  */
-	  putc ('\n', stdout);
-        }
+      if (nread < 0)
+	buf[0] = '\0';
+      else if (buf[nread - 1] == '\n')
+	{
+	  /* Remove the newline.  */
+	  buf[nread - 1] = '\0';
+	  if (tty_changed)
+	    {
+	      /* Write the newline that was not echoed.  */
+#ifdef USE_IN_LIBIO
+	      if (_IO_fwide (out, 0) > 0)
+		putwc_unlocked (L'\n', out);
+	      else
+#endif
+		putc_unlocked ('\n', out);
+	    }
+	}
     }
 
   /* Restore the original setting.  */
-  echo_on (fileno (stdin), &stored_settings);
+  if (tty_changed)
+    (void) tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &s);
 
-  return pbuf;
-}
+  funlockfile (out);
 
-#ifdef _GETPASS_STANDALONE_TEST
+  __libc_cleanup_pop (0);
 
-int
-main ()
-{
-  char *p;
-  p = getpass ("my prompt: ");
-  if (p)
-    printf ("Passwd: %s\n", p);
-  return 0;
+  call_fclose (tty);
+
+  return buf;
 }
-#endif

-/* rpl_malloc.c -- a replacement for malloc that don't accept 0 size
-   Copyright (C) 2001 Free Software Foundation, Inc.
+/* malloc() function that is glibc compatible.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -15,12 +15,22 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
+/* written by Jim Meyering */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef malloc
+
 #include <stdlib.h>
 
+/* Allocate an N-byte block of memory from the heap.
+   If N is zero, allocate a 1-byte block.  */
+
 void *
-rpl_malloc(size_t size)
+rpl_malloc (size_t n)
 {
-	if (!size)
-		size++;
-	return malloc(size);
+  if (n == 0)
+    n = 1;
+  return malloc (n);
 }

-/* rpl_realloc.c -- a replacement for broken realloc implementations
-   Copyright (C) 2001 Free Software Foundation, Inc.
+/* realloc() function that is glibc compatible.
+   Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -15,18 +15,32 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
+/* written by Jim Meyering */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef realloc
+
 #include <stdlib.h>
 
+/* Change the size of an allocated block of memory P to N bytes,
+   with error checking.  If N is zero, change it to 1.  If P is NULL,
+   use malloc.  */
+
 void *
-rpl_realloc(void *ptr, size_t size)
+rpl_realloc (void *p, size_t n)
 {
-  if (!ptr)
-    return malloc(size);
-  if (!size)
+  if (n == 0)
     {
-      if (ptr)
-        free(ptr);
-      return malloc(size);
+      n = 1;
+
+      /* In theory realloc might fail, so don't rely on it to free.  */
+      free (p);
+      p = NULL;
     }
-  return realloc(ptr, size);
+
+  if (p == NULL)
+    return malloc (n);
+  return realloc (p, n);
 }