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-rw-r--r--sysdeps/posix/mk-stdiolim.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/sysdeps/posix/mk-stdiolim.c b/sysdeps/posix/mk-stdiolim.c
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+++ b/sysdeps/posix/mk-stdiolim.c
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+/* Copyright (C) 1991, 1992, 1993 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <posix1_lim.h>
+
+int
+main()
+{
+  /* These values correspond to the code in sysdeps/posix/tempname.c.
+     Change the values here if you change that code.  */
+  printf("#define L_tmpnam %u\n", sizeof("/usr/tmp/") + 8);
+  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");
+
+  /* POSIX does not require that OPEN_MAX and PATH_MAX be defined, so
+     <local_lim.h> will not define them if they are run-time variant (which
+     is the case in the Hurd).  ANSI still requires that FOPEN_MAX and
+     FILENAME_MAX be defined, however.  */
+
+  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
+
+	 );
+
+  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).  ANSI
+	    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
+	 );
+
+  exit(0);
+}