105 lines
4.0 KiB
C
105 lines
4.0 KiB
C
/* Copyright (C) 1991, 1992, 1993, 1996, 1997 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 <bits/posix1_lim.h>
|
|
|
|
int
|
|
main()
|
|
{
|
|
/* Print copyright message. */
|
|
printf ("\
|
|
/* Stdio limits for POSIX systems.\n\
|
|
Copyright (C) 1994, 1997 Free Software Foundation, Inc.\n\
|
|
This file is part of the GNU C Library.\n\
|
|
\n\
|
|
The GNU C Library is free software; you can redistribute it and/or\n\
|
|
modify it under the terms of the GNU Library General Public License as\n\
|
|
published by the Free Software Foundation; either version 2 of the\n\
|
|
License, or (at your option) any later version.\n\
|
|
\n\
|
|
The GNU C Library is distributed in the hope that it will be useful,\n\
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n\
|
|
Library General Public License for more details.\n\
|
|
\n\
|
|
You should have received a copy of the GNU Library General Publicn\n\
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,\n\
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,\n\
|
|
Boston, MA 02111-1307, USA. */\n\
|
|
\n\
|
|
#if !defined _STDIO_H && !defined __need_FOPEN_MAX\n\
|
|
# error \"Never include <bits/stdio_lim.h> directly; use <stdio.h> instead.\"\n\
|
|
#endif\n\
|
|
\n");
|
|
|
|
/* These values correspond to the code in sysdeps/posix/tempname.c.
|
|
Change the values here if you change that code. */
|
|
puts ("#ifndef __need_FOPEN_MAX");
|
|
printf ("# define L_tmpnam %u\n", sizeof ("/usr/tmp/") + 9);
|
|
printf ("# define TMP_MAX %u\n", 62 * 62 * 62);
|
|
|
|
puts ("# ifdef __USE_POSIX");
|
|
printf ("# define L_ctermid %u\n", sizeof ("/dev/tty"));
|
|
printf ("# define L_cuserid 9\n");
|
|
puts ("# endif");
|
|
|
|
printf (" #define FILENAME_MAX %u\n",
|
|
#ifdef PATH_MAX
|
|
PATH_MAX
|
|
#else
|
|
/* This is supposed to be the size needed to hold the longest file
|
|
name string the implementation guarantees can be opened.
|
|
PATH_MAX not being defined means the actual limit on the length
|
|
of a file name is runtime-variant (or it is unlimited). ISO
|
|
says in such a case FILENAME_MAX should be a good size to
|
|
allocate for a file name string. POSIX.1 guarantees that a
|
|
file name up to _POSIX_PATH_MAX chars long can be opened, so
|
|
this value must be at least that. */
|
|
1024 /* _POSIX_PATH_MAX is 255. */
|
|
#endif
|
|
);
|
|
|
|
puts ("#endif\n");
|
|
|
|
/* POSIX does not require that OPEN_MAX and PATH_MAX be defined, so
|
|
<bits/local_lim.h> will not define them if they are run-time
|
|
variant (which is the case in the Hurd). ISO still requires
|
|
that FOPEN_MAX and FILENAME_MAX be defined, however. */
|
|
|
|
puts ("#if defined __need_FOPEN_MAX && !defined __defined_FOPEN_MAX");
|
|
puts ("# define __defined_FOPEN_MAX");
|
|
printf ("# define FOPEN_MAX %u\n",
|
|
#ifdef OPEN_MAX
|
|
|
|
OPEN_MAX
|
|
#else
|
|
/* This is the minimum number of files that the implementation
|
|
guarantees can be open simultaneously. OPEN_MAX not being
|
|
defined means the maximum is run-time variant; but POSIX.1
|
|
requires that it never be less than _POSIX_OPEN_MAX, so that is
|
|
a good minimum to use. */
|
|
_POSIX_OPEN_MAX
|
|
#endif
|
|
|
|
);
|
|
puts ("#endif");
|
|
puts ("#undef __need_FOPEN_MAX");
|
|
|
|
exit (0);
|
|
}
|