No specific user configuration

[platform/upstream/bash.git] / lib / sh / oslib.c

diff --git a/lib/sh/oslib.c b/lib/sh/oslib.c
index 69a3513..65eb99d 100644 (file)
--- a/lib/sh/oslib.c
+++ b/lib/sh/oslib.c
@@ -1,27 +1,27 @@
 /* oslib.c - functions present only in some unix versions. */
 
-/* Copyright (C) 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1995,2010 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
-   Bash 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.
+   Bash 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 3 of the License, or
+   (at your option) any later version.
 
-   Bash 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.
+   Bash 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 Bash; see the file COPYING.  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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
 
 #include <config.h>
 
 #include <bashtypes.h>
-#ifndef _MINIX
+#if defined (HAVE_SYS_PARAM_H)
 #  include <sys/param.h>
 #endif
 
@@ -29,10 +29,18 @@
 #  include <unistd.h>
 #endif
 
+#if defined (HAVE_LIMITS_H)
+#  include <limits.h>
+#endif
+
 #include <posixstat.h>
 #include <filecntl.h>
 #include <bashansi.h>
 
+#if !defined (HAVE_KILLPG)
+#  include <signal.h>
+#endif
+
 #include <stdio.h>
 #include <errno.h>
 #include <chartypes.h>
@@ -116,7 +124,7 @@ dup2 (fd1, fd2)
 /*
  * Return the total number of available file descriptors.
  *
- * On some systems, like 4.2BSD and its descendents, there is a system call
+ * On some systems, like 4.2BSD and its descendants, there is a system call
  * that returns the size of the descriptor table: getdtablesize().  There are
  * lots of ways to emulate this on non-BSD systems.
  *
@@ -205,7 +213,8 @@ gethostname (name, namelen)
 #  else /* !HAVE_UNAME */
 int
 gethostname (name, namelen)
-     int name, namelen;
+     char *name;
+     int namelen;
 {
   strncpy (name, "unknown", namelen);
   name[namelen] = '\0';
@@ -237,3 +246,56 @@ mkfifo (path, mode)
 #endif /* !S_IFIFO */
 }
 #endif /* !HAVE_MKFIFO && PROCESS_SUBSTITUTION */
+
+#define DEFAULT_MAXGROUPS 64
+
+int
+getmaxgroups ()
+{
+  static int maxgroups = -1;
+
+  if (maxgroups > 0)
+    return maxgroups;
+
+#if defined (HAVE_SYSCONF) && defined (_SC_NGROUPS_MAX)
+  maxgroups = sysconf (_SC_NGROUPS_MAX);
+#else
+#  if defined (NGROUPS_MAX)
+  maxgroups = NGROUPS_MAX;
+#  else /* !NGROUPS_MAX */
+#    if defined (NGROUPS)
+  maxgroups = NGROUPS;
+#    else /* !NGROUPS */
+  maxgroups = DEFAULT_MAXGROUPS;
+#    endif /* !NGROUPS */
+#  endif /* !NGROUPS_MAX */  
+#endif /* !HAVE_SYSCONF || !SC_NGROUPS_MAX */
+
+  if (maxgroups <= 0)
+    maxgroups = DEFAULT_MAXGROUPS;
+
+  return maxgroups;
+}
+
+long
+getmaxchild ()
+{
+  static long maxchild = -1L;
+
+  if (maxchild > 0)
+    return maxchild;
+
+#if defined (HAVE_SYSCONF) && defined (_SC_CHILD_MAX)
+  maxchild = sysconf (_SC_CHILD_MAX);
+#else
+#  if defined (CHILD_MAX)
+  maxchild = CHILD_MAX;
+#  else
+#    if defined (MAXUPRC)
+  maxchild = MAXUPRC;
+#    endif /* MAXUPRC */
+#  endif /* CHILD_MAX */
+#endif /* !HAVE_SYSCONF || !_SC_CHILD_MAX */
+
+  return (maxchild);
+}