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87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* some system calls possibly missing from libc
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*
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* Copyright (C) 1999,2000,2001 by Lineo, inc.
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* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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/* Kernel headers before 2.1.mumble need this on the Alpha to get
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_syscall* defined. */
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#define __LIBRARY__
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#include <sys/syscall.h>
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#include <asm/unistd.h>
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#include "libbb.h"
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#if __GNU_LIBRARY__ < 5
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/* These syscalls are not included as part of libc5 */
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_syscall1(int, delete_module, const char *, name);
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_syscall1(int, get_kernel_syms, __ptr_t, ks);
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/* This may have 5 arguments (for old 2.0 kernels) or 2 arguments
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* (for 2.2 and 2.4 kernels). Use the greatest common denominator,
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* and let the kernel cope with whatever it gets. Its good at that. */
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_syscall5(int, init_module, void *, first, void *, second, void *, third,
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void *, fourth, void *, fifth);
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#ifndef __NR_query_module
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#warning This kernel does not support the query_module syscall
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#warning -> The query_module system call is being stubbed out...
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int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret)
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{
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fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n");
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fprintf(stderr, "with a kernel supporting the query_module system call. -Erik\n\n");
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errno=ENOSYS;
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return -1;
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}
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#else
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_syscall5(int, query_module, const char *, name, int, which,
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void *, buf, size_t, bufsize, size_t*, ret);
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#endif
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/* Jump through hoops to fixup error return codes */
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#define __NR___create_module __NR_create_module
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static inline _syscall2(long, __create_module, const char *, name, size_t, size)
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unsigned long create_module(const char *name, size_t size)
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{
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long ret = __create_module(name, size);
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if (ret == -1 && errno > 125) {
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ret = -errno;
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errno = 0;
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}
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return ret;
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}
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#endif /* __GNU_LIBRARY__ < 5 */
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/* END CODE */
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/*
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Local Variables:
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c-file-style: "linux"
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c-basic-offset: 4
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tab-width: 4
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End:
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*/
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