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Diffstat (limited to 'sysdeps/posix/getdtsz.c')
-rw-r--r--sysdeps/posix/getdtsz.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/sysdeps/posix/getdtsz.c b/sysdeps/posix/getdtsz.c
index 2080dc7..22ecb4f 100644
--- a/sysdeps/posix/getdtsz.c
+++ b/sysdeps/posix/getdtsz.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1993, 1995, 1996 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
@@ -16,17 +16,21 @@ 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 <ansidecl.h>
+#include <limits.h>
#include <unistd.h>
-
-extern long int EXFUN(__sysconf, (int));
+#include <sys/resource.h>
/* Return the maximum number of file descriptors
the current process could possibly have. */
int
-DEFUN_VOID(__getdtablesize)
+__getdtablesize (void)
{
- return __sysconf (_SC_OPEN_MAX);
+ struct rlimit ru;
+
+ /* This should even work if `getrlimit' is not implemented. POSIX.1
+ does not define this function but we will generate a stub which
+ returns -1. */
+ return __getrlimit (RLIMIT_NOFILE, &ru) < 0 ? OPEN_MAX : ru.rlim_cur;
}
weak_alias (__getdtablesize, getdtablesize)