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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1990-1996 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ident "%Z%%M% %I% %E% SMI"
#include <unistd.h>
#include <sys/errno.h>
#include <sys/fcntl.h>
#include <sys/filio.h>
#include <sys/ioccom.h>
#include <sys/syscall.h>
/* The following is an array of fcntl commands. The numbers listed
* below are from SVR4. Array is indexed with SunOS 4.1 numbers to
* obtain the SVR4 numbers.
*/
int cmd_op[14] = {0, 1, 2, 3, 4, 23, 24, 14, 6, 7, 21, 20, -1, 22};
/* SVR4/SunOS 5.0 equivalent modes */
#define N_O_NDELAY 0x04
#define N_O_SYNC 0x10
#define N_O_NONBLOCK 0x80
#define N_O_CREAT 0x100
#define N_O_TRUNC 0x200
#define N_O_EXCL 0x400
#define S5_FASYNC 0x1000
/* from SVR4 stropts.h */
#define S5_S_RDNORM 0x0040
#define S5_S_WRNORM 0x0004
#define S5_S_RDBAND 0x0080
#define S5_S_BANDURG 0x0200
#define S5_I_SETSIG (('S'<<8)|011)
#define S5_I_GETSIG (('S'<<8)|012)
/* Mask corresponding to the bits above in SunOS 4.x */
#define FLAGS_MASK (O_SYNC|O_NONBLOCK|O_CREAT|O_TRUNC|O_EXCL \
|O_NDELAY|FNBIO|FASYNC)
#define N_FLAGS_MASK (N_O_NDELAY|N_O_SYNC|N_O_NONBLOCK|N_O_CREAT \
|N_O_TRUNC|N_O_EXCL|S5_FASYNC)
struct n_flock {
short l_type;
short l_whence;
long l_start;
long l_len; /* len == 0 means until end of file */
long l_sysid;
long l_pid;
long pad[4]; /* reserve area */
} ;
int fcntl(fd, cmd, arg)
int fd, cmd, arg;
{
return(bc_fcntl(fd, cmd, arg));
}
int bc_fcntl(fd, cmd, arg)
int fd, cmd, arg;
{
int fds, ret;
struct flock *savarg;
struct n_flock nfl;
extern int errno;
int i, narg;
if ((cmd == F_SETOWN) || (cmd == F_GETOWN)) {
ret = _s_fcntl(fd, cmd_op[cmd], arg);
if ((ret != -1) || (errno != EINVAL))
return (ret);
else {
if (cmd == F_GETOWN) {
if (_ioctl(fd, S5_I_GETSIG, &i) < 0) {
if (errno == EINVAL)
i = 0;
else
return (-1);
}
if (i & (S5_S_RDBAND|S5_S_BANDURG|
S5_S_RDNORM|S5_S_WRNORM))
return (getpid());
return (0);
} else { /* cmd == F_SETOWN */
i = S5_S_RDNORM|S5_S_WRNORM|S5_S_RDBAND|S5_S_BANDURG;
return (ioctl(fd, S5_I_SETSIG, i));
}
}
}
if (cmd == F_SETFL) {
if (arg & FLAGS_MASK) {
narg = arg & ~FLAGS_MASK;
if (arg & FASYNC)
narg |= S5_FASYNC;
if (arg & O_SYNC)
narg |= N_O_SYNC;
if (arg & O_CREAT)
narg |= N_O_CREAT;
if (arg & O_TRUNC)
narg |= N_O_TRUNC;
if (arg & O_EXCL)
narg |= N_O_EXCL;
if (arg & (O_NDELAY))
narg |= N_O_NDELAY;
if (arg & O_NONBLOCK)
narg |= N_O_NONBLOCK;
if (arg & FNBIO)
narg |= N_O_NDELAY;
arg = narg;
}
} else if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK) {
if (arg == 0 || arg == -1) {
errno = EFAULT;
return(-1);
}
savarg = (struct flock *)arg;
arg = (int) &nfl;
nfl.l_type = savarg->l_type;
nfl.l_whence = savarg->l_whence;
nfl.l_start = savarg->l_start;
nfl.l_len = savarg->l_len;
nfl.l_pid = savarg->l_pid;
}
ret = _s_fcntl(fd, cmd_op[cmd], arg);
if (ret != -1) {
if (cmd == F_DUPFD) {
if ((fds = fd_get(fd)) != -1)
fd_add(ret, fds);
} else if (cmd == F_GETFL) {
if (ret & N_FLAGS_MASK) {
narg = ret & ~N_FLAGS_MASK;
if (ret & S5_FASYNC)
narg |= FASYNC;
if (ret & N_O_SYNC)
narg |= O_SYNC;
if (ret & N_O_NONBLOCK)
narg |= O_NONBLOCK;
if (ret & N_O_CREAT)
narg |= O_CREAT;
if (ret & N_O_TRUNC)
narg |= O_TRUNC;
if (ret & N_O_EXCL)
narg |= O_EXCL;
if (ret & (N_O_NDELAY))
narg |= O_NDELAY;
ret = narg;
}
} else if (cmd == F_SETLK || cmd == F_SETLKW ||
cmd == F_GETLK) {
savarg->l_type = nfl.l_type;
savarg->l_whence = nfl.l_whence;
savarg->l_start = nfl.l_start;
savarg->l_len = nfl.l_len;
savarg->l_pid = nfl.l_pid;
arg = (int) savarg;
}
}
return(ret);
}
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