AIX implementation of waitid.

diff --git a/sysdeps/unix/sysv/aix/waitid.c b/sysdeps/unix/sysv/aix/waitid.c
new file mode 100644 (file)
index 0000000..a1fcae0
--- /dev/null
+++ b/sysdeps/unix/sysv/aix/waitid.c
@@ -0,0 +1,82 @@
+/* Pseudo implementation of waitid.
+   Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997.
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <signal.h>
+#define __need_NULL
+#include <stddef.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+
+#include <assert.h>
+
+extern pid_t kwaitpid (int *stat_loc, pid_t pid, int options,
+                      struct rusage *ru_loc, siginfo_t *infop);
+
+int
+waitid (idtype, id, infop, options)
+     idtype_t idtype;
+     id_t id;
+     siginfo_t *infop;
+     int options;
+{
+  pid_t pid, child;
+  int status;
+
+  switch (idtype)
+    {
+    case P_PID:
+      if(id <= 0)
+       goto invalid;
+      pid = (pid_t) id;
+      break;
+    case P_PGID:
+      if (id < 0 || id == 1)
+       goto invalid;
+      pid = (pid_t) -id;
+      break;
+    case P_ALL:
+      pid = -1;
+      break;
+    default:
+    invalid:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  /* Technically we're supposed to return EFAULT if infop is bogus,
+     but that would involve mucking with signals, which is
+     too much hassle.  User will have to deal with SIGSEGV/SIGBUS.
+     We just check for a null pointer. */
+
+  if (infop == NULL)
+    {
+      __set_errno (EFAULT);
+      return -1;
+    }
+
+  child = kwaitpid (&status, pid, options, NULL, infop);
+
+  if (child == -1)
+    /* `waitpid' set `errno' for us.  */
+    return -1;
+
+  return 0;
+}