Annotation of prex/usr/lib/posix/file/fcntl.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 2007, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #include <prex/prex.h>
! 31: #include <prex/posix.h>
! 32: #include <server/fs.h>
! 33: #include <sys/fcntl.h>
! 34:
! 35: #include <stdarg.h>
! 36: #include <string.h>
! 37:
! 38: int
! 39: fcntl(int fd, int cmd, ...)
! 40: {
! 41: struct fcntl_msg m;
! 42: va_list args;
! 43: long arg;
! 44:
! 45: va_start(args, cmd);
! 46: arg = va_arg(args, long);
! 47: va_end(args);
! 48:
! 49: m.hdr.code = FS_FCNTL;
! 50: m.fd = fd;
! 51: m.cmd = cmd;
! 52: if (cmd == F_GETLK || cmd == F_SETLK || cmd == F_SETLKW)
! 53: memcpy(&m.lock, (char *)arg, sizeof(struct flock));
! 54: else
! 55: m.arg = arg;
! 56:
! 57: if (__posix_call(__fs_obj, &m, sizeof(m), 1) != 0)
! 58: return -1;
! 59: return m.arg;
! 60: }
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