1 files changed, 53 insertions, 0 deletions
diff --git a/posix/waitpid.c b/posix/waitpid.c
new file mode 100644
index 0000000000..9c7736e669
--- /dev/null
+++ b/posix/waitpid.c
@@ -0,0 +1,53 @@
+/* Copyright (C) 1991,95,96,97,2002 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#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
+__libc_waitpid (pid_t pid, int *stat_loc, int options)
+{
+  if ((options & ~(WNOHANG|WUNTRACED)) != 0)
+    {
+      __set_errno (EINVAL);
+      return (pid_t) -1;
+    }
+
+  __set_errno (ENOSYS);
+  return (pid_t) -1;
+}
+weak_alias (__libc_waitpid, __waitpid)
+libc_hidden_weak (__waitpid)
+weak_alias (__libc_waitpid, waitpid)
+
+stub_warning (waitpid)
+#include <stub-tag.h>