1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/unix/bsd/sun/sunos4/wait4.c b/sysdeps/unix/bsd/sun/sunos4/wait4.c
new file mode 100644
index 0000000000..097c15e7d9
--- /dev/null
+++ b/sysdeps/unix/bsd/sun/sunos4/wait4.c
@@ -0,0 +1,50 @@
+/* This implements wait4 with the 4.4 BSD semantics (also those documented in
+   SunOS 4.1) on top of SunOS's wait4 system call, which has semantics
+   different from those documented.  Go Sun!
+   Copyright (C) 1991,1992,1993,1995,1997,2004 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 <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+extern pid_t __wait4_syscall (pid_t pid, __WAIT_STATUS_DEFN stat_loc,
+			      int options, struct rusage *usage);
+
+pid_t
+__wait4 (pid, stat_loc, options, usage)
+     pid_t pid;
+     __WAIT_STATUS_DEFN stat_loc;
+     int options;
+     struct rusage *usage;
+{
+  switch (pid)
+    {
+    case WAIT_ANY:
+      pid = 0;
+      break;
+
+    case WAIT_MYPGRP:
+      pid = - getpgrp ();
+      break;
+    }
+
+  return __wait4_syscall (pid, stat_loc, options, usage);
+}
+
+weak_alias (__wait4, wait4)