1/* vi: set sw=4 ts=4: */
2/*
3 * some system calls possibly missing from libc
4 *
5 * Copyright (C) 1999,2000,2001 by Lineo, inc.
6 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include <stdio.h>
25#include <errno.h>
26#include <unistd.h>
27/* Kernel headers before 2.1.mumble need this on the Alpha to get
28   _syscall* defined.  */
29#define __LIBRARY__
30#include <sys/syscall.h>
31#ifndef __UCLIBC__
32#include <asm/unistd.h>
33#endif
34#include "libbb.h"
35
36
37#if __GNU_LIBRARY__ < 5
38/* These syscalls are not included as part of libc5 */
39_syscall1(int, delete_module, const char *, name);
40_syscall1(int, get_kernel_syms, __ptr_t, ks);
41
42/* This may have 5 arguments (for old 2.0 kernels) or 2 arguments
43 * (for 2.2 and 2.4 kernels).  Use the greatest common denominator,
44 * and let the kernel cope with whatever it gets.  Its good at that. */
45_syscall5(int, init_module, void *, first, void *, second, void *, third,
46		void *, fourth, void *, fifth);
47
48#ifndef __NR_query_module
49#warning This kernel does not support the query_module syscall
50#warning -> The query_module system call is being stubbed out...
51int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret)
52{
53	fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n");
54	fprintf(stderr, "with a kernel supporting the query_module system call. -Erik\n\n");
55	errno=ENOSYS;
56	return -1;
57}
58#else
59_syscall5(int, query_module, const char *, name, int, which,
60		void *, buf, size_t, bufsize, size_t*, ret);
61#endif
62
63/* Jump through hoops to fixup error return codes */
64#define __NR___create_module  __NR_create_module
65static inline _syscall2(long, __create_module, const char *, name, size_t, size)
66unsigned long create_module(const char *name, size_t size)
67{
68	long ret = __create_module(name, size);
69
70	if (ret == -1 && errno > 125) {
71		ret = -errno;
72		errno = 0;
73	}
74	return ret;
75}
76
77#endif /* __GNU_LIBRARY__ < 5 */
78
79
80/* END CODE */
81/*
82Local Variables:
83c-file-style: "linux"
84c-basic-offset: 4
85tab-width: 4
86End:
87*/
88
89