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-rw-r--r--sysdeps/stub/waitpid.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/stub/waitpid.c b/sysdeps/stub/waitpid.c
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+++ b/sysdeps/stub/waitpid.c
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+/* Copyright (C) 1991, 1995 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 <ansidecl.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+
+
+/* Wait for a child matching PID to die.
+   If PID is greater than 0, match any process whose process ID is PID.
+   If PID is (pid_t) -1, match any process.
+   If PID is (pid_t) 0, match any process with the
+   same process group as the current process.
+   If PID is less than -1, match any process whose
+   process group is the absolute value of PID.
+   If the WNOHANG bit is set in OPTIONS, and that child
+   is not already dead, return (pid_t) 0.  If successful,
+   return PID and store the dead child's status in STAT_LOC.
+   Return (pid_t) -1 for errors.  If the WUNTRACED bit is set in OPTIONS,
+   return status for stopped children; otherwise don't.  */
+pid_t
+DEFUN(__waitpid, (pid, stat_loc, options),
+      pid_t pid AND int *stat_loc AND int options)
+{
+  if ((options & ~(WNOHANG|WUNTRACED)) != 0)
+    {
+      errno = EINVAL;
+      return (pid_t) -1;
+    }
+
+  errno = ENOSYS;
+  return (pid_t) -1;
+}
+stub_warning (waitpid)
+
+weak_alias (__waitpid, waitpid)