1177911Sdfr/*- 2177911Sdfr * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 3177911Sdfr * Authors: Doug Rabson <dfr@rabson.org> 4177911Sdfr * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> 5177911Sdfr * 6177911Sdfr * Redistribution and use in source and binary forms, with or without 7177911Sdfr * modification, are permitted provided that the following conditions 8177911Sdfr * are met: 9177911Sdfr * 1. Redistributions of source code must retain the above copyright 10177911Sdfr * notice, this list of conditions and the following disclaimer. 11177911Sdfr * 2. Redistributions in binary form must reproduce the above copyright 12177911Sdfr * notice, this list of conditions and the following disclaimer in the 13177911Sdfr * documentation and/or other materials provided with the distribution. 14177911Sdfr * 15177911Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16177911Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17177911Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18177911Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19177911Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20177911Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21177911Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22177911Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23177911Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24177911Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25177911Sdfr * SUCH DAMAGE. 26177911Sdfr */ 27177911Sdfr 28177911Sdfr#include <sys/cdefs.h> 29177911Sdfr__FBSDID("$FreeBSD$"); 30177911Sdfr 31177911Sdfr#include <fcntl.h> 32177911Sdfr#include <stdarg.h> 33177911Sdfr#include <sys/types.h> 34177911Sdfr#include <sys/syscall.h> 35177911Sdfr#include "libc_private.h" 36177911Sdfr 37277317Skib#pragma weak fcntl 38277317Skibint 39277317Skibfcntl(int fd, int cmd, ...) 40277317Skib{ 41277317Skib va_list args; 42277317Skib long arg; 43179358Sdfr 44277317Skib va_start(args, cmd); 45277317Skib arg = va_arg(args, long); 46277317Skib va_end(args); 47277317Skib 48277317Skib return (((int (*)(int, int, ...)) 49277317Skib __libc_interposing[INTERPOS_fcntl])(fd, cmd, arg)); 50277317Skib} 51277317Skib 52277317Skib#ifdef SYSCALL_COMPAT 53277317Skib__weak_reference(__fcntl_compat, __fcntl); 54277317Skib 55177911Sdfrint 56179434Sdfr__fcntl_compat(int fd, int cmd, ...) 57177911Sdfr{ 58177911Sdfr va_list args; 59177911Sdfr long arg; 60238667Skib struct __oflock ofl; 61177911Sdfr struct flock *flp; 62177911Sdfr int res; 63177911Sdfr 64177911Sdfr va_start(args, cmd); 65177911Sdfr arg = va_arg(args, long); 66177911Sdfr va_end(args); 67177911Sdfr 68177911Sdfr if (__getosreldate() >= 800028) { 69177911Sdfr return (__sys_fcntl(fd, cmd, arg)); 70177911Sdfr } else { 71177911Sdfr if (cmd == F_GETLK || cmd == F_SETLK || cmd == F_SETLKW) { 72177911Sdfr /* 73177911Sdfr * Convert new-style struct flock (which 74177911Sdfr * includes l_sysid) to old-style. 75177911Sdfr */ 76177911Sdfr flp = (struct flock *) (uintptr_t) arg; 77177911Sdfr ofl.l_start = flp->l_start; 78177911Sdfr ofl.l_len = flp->l_len; 79177911Sdfr ofl.l_pid = flp->l_pid; 80177911Sdfr ofl.l_type = flp->l_type; 81177911Sdfr ofl.l_whence = flp->l_whence; 82177911Sdfr 83177911Sdfr switch (cmd) { 84177911Sdfr case F_GETLK: 85177911Sdfr res = __sys_fcntl(fd, F_OGETLK, &ofl); 86177911Sdfr if (res >= 0) { 87177911Sdfr flp->l_start = ofl.l_start; 88177911Sdfr flp->l_len = ofl.l_len; 89177911Sdfr flp->l_pid = ofl.l_pid; 90177911Sdfr flp->l_type = ofl.l_type; 91177911Sdfr flp->l_whence = ofl.l_whence; 92177911Sdfr flp->l_sysid = 0; 93177911Sdfr } 94177911Sdfr return (res); 95177911Sdfr 96177911Sdfr case F_SETLK: 97177911Sdfr return (__sys_fcntl(fd, F_OSETLK, &ofl)); 98177911Sdfr 99177911Sdfr case F_SETLKW: 100177911Sdfr return (__sys_fcntl(fd, F_OSETLKW, &ofl)); 101177911Sdfr } 102177911Sdfr } 103177911Sdfr return (__sys_fcntl(fd, cmd, arg)); 104177911Sdfr } 105177911Sdfr} 106277317Skib#endif 107