diff options
Diffstat (limited to 'sys/i386/ibcs2/ibcs2_fcntl.c')
| -rw-r--r-- | sys/i386/ibcs2/ibcs2_fcntl.c | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/sys/i386/ibcs2/ibcs2_fcntl.c b/sys/i386/ibcs2/ibcs2_fcntl.c new file mode 100644 index 0000000..4dede8c --- /dev/null +++ b/sys/i386/ibcs2/ibcs2_fcntl.c @@ -0,0 +1,305 @@ +/* + * Copyright (c) 1995 Scott Bartram + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/namei.h> +#include <sys/proc.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <sys/filedesc.h> +#include <sys/ioctl.h> +#include <sys/kernel.h> +#include <sys/mount.h> +#include <sys/malloc.h> +#include <sys/syscallargs.h> + +#include <compat/ibcs2/ibcs2_types.h> +#include <compat/ibcs2/ibcs2_fcntl.h> +#include <compat/ibcs2/ibcs2_signal.h> +#include <compat/ibcs2/ibcs2_syscallargs.h> +#include <compat/ibcs2/ibcs2_util.h> + + +static int +cvt_o_flags(flags) + int flags; +{ + int r = 0; + + /* convert mode into NetBSD mode */ + if (flags & IBCS2_O_WRONLY) r |= O_WRONLY; + if (flags & IBCS2_O_RDWR) r |= O_RDWR; + if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK; + if (flags & IBCS2_O_APPEND) r |= O_APPEND; + if (flags & IBCS2_O_SYNC) r |= O_FSYNC; + if (flags & IBCS2_O_CREAT) r |= O_CREAT; + if (flags & IBCS2_O_TRUNC) r |= O_TRUNC; + if (flags & IBCS2_O_EXCL) r |= O_EXCL; + return r; +} + +static void +cvt_flock2iflock(flp, iflp) + struct flock *flp; + struct ibcs2_flock *iflp; +{ + switch (flp->l_type) { + case F_RDLCK: + iflp->l_type = IBCS2_F_RDLCK; + break; + case F_WRLCK: + iflp->l_type = IBCS2_F_WRLCK; + break; + case F_UNLCK: + iflp->l_type = IBCS2_F_UNLCK; + break; + } + iflp->l_whence = (short)flp->l_whence; + iflp->l_start = (ibcs2_off_t)flp->l_start; + iflp->l_len = (ibcs2_off_t)flp->l_len; + iflp->l_sysid = 0; + iflp->l_pid = (ibcs2_pid_t)flp->l_pid; +} + +static void +cvt_iflock2flock(iflp, flp) + struct ibcs2_flock *iflp; + struct flock *flp; +{ + flp->l_start = (off_t)iflp->l_start; + flp->l_len = (off_t)iflp->l_len; + flp->l_pid = (pid_t)iflp->l_pid; + switch (iflp->l_type) { + case IBCS2_F_RDLCK: + flp->l_type = F_RDLCK; + break; + case IBCS2_F_WRLCK: + flp->l_type = F_WRLCK; + break; + case IBCS2_F_UNLCK: + flp->l_type = F_UNLCK; + break; + } + flp->l_whence = iflp->l_whence; +} + +/* convert iBCS2 mode into NetBSD mode */ +static int +ioflags2oflags(flags) + int flags; +{ + int r = 0; + + if (flags & IBCS2_O_RDONLY) r |= O_RDONLY; + if (flags & IBCS2_O_WRONLY) r |= O_WRONLY; + if (flags & IBCS2_O_RDWR) r |= O_RDWR; + if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK; + if (flags & IBCS2_O_APPEND) r |= O_APPEND; + if (flags & IBCS2_O_SYNC) r |= O_FSYNC; + if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK; + if (flags & IBCS2_O_CREAT) r |= O_CREAT; + if (flags & IBCS2_O_TRUNC) r |= O_TRUNC; + if (flags & IBCS2_O_EXCL) r |= O_EXCL; + if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY; + return r; +} + +/* convert NetBSD mode into iBCS2 mode */ +static int +oflags2ioflags(flags) + int flags; +{ + int r = 0; + + if (flags & O_RDONLY) r |= IBCS2_O_RDONLY; + if (flags & O_WRONLY) r |= IBCS2_O_WRONLY; + if (flags & O_RDWR) r |= IBCS2_O_RDWR; + if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK; + if (flags & O_APPEND) r |= IBCS2_O_APPEND; + if (flags & O_FSYNC) r |= IBCS2_O_SYNC; + if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK; + if (flags & O_CREAT) r |= IBCS2_O_CREAT; + if (flags & O_TRUNC) r |= IBCS2_O_TRUNC; + if (flags & O_EXCL) r |= IBCS2_O_EXCL; + if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY; + return r; +} + +int +ibcs2_open(p, uap, retval) + struct proc *p; + struct ibcs2_open_args *uap; + int *retval; +{ + int noctty = SCARG(uap, flags) & IBCS2_O_NOCTTY; + int ret; + caddr_t sg = stackgap_init(); + + SCARG(uap, flags) = cvt_o_flags(SCARG(uap, flags)); + if (SCARG(uap, flags) & O_CREAT) + CHECKALTCREAT(p, &sg, SCARG(uap, path)); + else + CHECKALTEXIST(p, &sg, SCARG(uap, path)); + ret = open(p, uap, retval); + + if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { + struct filedesc *fdp = p->p_fd; + struct file *fp = fdp->fd_ofiles[*retval]; + + /* ignore any error, just give it a try */ + if (fp->f_type == DTYPE_VNODE) + (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p); + } + return ret; +} + +int +ibcs2_creat(p, uap, retval) + struct proc *p; + struct ibcs2_creat_args *uap; + int *retval; +{ + struct open_args cup; + caddr_t sg = stackgap_init(); + + CHECKALTCREAT(p, &sg, SCARG(uap, path)); + SCARG(&cup, path) = SCARG(uap, path); + SCARG(&cup, mode) = SCARG(uap, mode); + SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC; + return open(p, &cup, retval); +} + +int +ibcs2_access(p, uap, retval) + struct proc *p; + struct ibcs2_access_args *uap; + int *retval; +{ + struct access_args cup; + caddr_t sg = stackgap_init(); + + CHECKALTEXIST(p, &sg, SCARG(uap, path)); + SCARG(&cup, path) = SCARG(uap, path); + SCARG(&cup, flags) = SCARG(uap, flags); + return access(p, &cup, retval); +} + +int +ibcs2_fcntl(p, uap, retval) + struct proc *p; + struct ibcs2_fcntl_args *uap; + int *retval; +{ + int error; + struct fcntl_args fa; + struct flock *flp; + struct ibcs2_flock ifl; + + switch(SCARG(uap, cmd)) { + case IBCS2_F_DUPFD: + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_DUPFD; + SCARG(&fa, arg) = SCARG(uap, arg); + return fcntl(p, &fa, retval); + case IBCS2_F_GETFD: + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_GETFD; + SCARG(&fa, arg) = SCARG(uap, arg); + return fcntl(p, &fa, retval); + case IBCS2_F_SETFD: + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_SETFD; + SCARG(&fa, arg) = SCARG(uap, arg); + return fcntl(p, &fa, retval); + case IBCS2_F_GETFL: + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_GETFL; + SCARG(&fa, arg) = SCARG(uap, arg); + error = fcntl(p, &fa, retval); + if (error) + return error; + *retval = oflags2ioflags(*retval); + return error; + case IBCS2_F_SETFL: + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_SETFL; + SCARG(&fa, arg) = (void *)ioflags2oflags(SCARG(uap, arg)); + return fcntl(p, &fa, retval); + + case IBCS2_F_GETLK: + { + caddr_t sg = stackgap_init(); + flp = stackgap_alloc(&sg, sizeof(*flp)); + error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, + ibcs2_flock_len); + if (error) + return error; + cvt_iflock2flock(&ifl, flp); + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_GETLK; + SCARG(&fa, arg) = (void *)flp; + error = fcntl(p, &fa, retval); + if (error) + return error; + cvt_flock2iflock(flp, &ifl); + return copyout((caddr_t)&ifl, (caddr_t)SCARG(uap, arg), + ibcs2_flock_len); + } + + case IBCS2_F_SETLK: + { + caddr_t sg = stackgap_init(); + flp = stackgap_alloc(&sg, sizeof(*flp)); + error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, + ibcs2_flock_len); + if (error) + return error; + cvt_iflock2flock(&ifl, flp); + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_SETLK; + SCARG(&fa, arg) = (void *)flp; + return fcntl(p, &fa, retval); + } + + case IBCS2_F_SETLKW: + { + caddr_t sg = stackgap_init(); + flp = stackgap_alloc(&sg, sizeof(*flp)); + error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl, + ibcs2_flock_len); + if (error) + return error; + cvt_iflock2flock(&ifl, flp); + SCARG(&fa, fd) = SCARG(uap, fd); + SCARG(&fa, cmd) = F_SETLKW; + SCARG(&fa, arg) = (void *)flp; + return fcntl(p, &fa, retval); + } + } + return ENOSYS; +} |
