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