/* $NetBSD: sunos_misc.c,v 1.43 1995/03/21 13:34:15 mycroft Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * @(#)sunos_misc.c 8.1 (Berkeley) 6/18/93 * * Header: sunos_misc.c,v 1.16 93/04/07 02:46:27 torek Exp */ /* * SunOS compatibility module. * * SunOS system calls that are implemented differently in BSD are * handled here. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int sunos_wait4(p, uap, retval) struct proc *p; struct sunos_wait4_args *uap; register_t *retval; { if (SCARG(uap, pid) == 0) SCARG(uap, pid) = WAIT_ANY; return (wait4(p, uap, retval, 1)); } int sunos_creat(p, uap, retval) struct proc *p; struct sunos_creat_args *uap; register_t *retval; { struct sunos_open_args ouap; SCARG(&ouap, path) = SCARG(uap, path); SCARG(&ouap, flags) = O_WRONLY | O_CREAT | O_TRUNC; SCARG(&ouap, mode) = SCARG(uap, mode); return (open(p, &ouap, retval)); } int sunos_execv(p, uap, retval) struct proc *p; struct sunos_execv_args *uap; register_t *retval; { struct execve_args ouap; SCARG(&ouap, path) = SCARG(uap, path); SCARG(&ouap, argp) = SCARG(uap, argp); SCARG(&ouap, envp) = NULL; return (execve(p, &ouap, retval)); } int sunos_omsync(p, uap, retval) struct proc *p; struct sunos_omsync_args *uap; register_t *retval; { struct msync_args ouap; if (SCARG(uap, flags)) return (EINVAL); SCARG(&ouap, addr) = SCARG(uap, addr); SCARG(&ouap, len) = SCARG(uap, len); return (msync(p, &ouap, retval)); } int sunos_unmount(p, uap, retval) struct proc *p; struct sunos_unmount_args *uap; register_t *retval; { SCARG(uap, flags) = 0; return (unmount(p, (struct unmount_args *)uap, retval)); } int sunos_mount(p, uap, retval) struct proc *p; struct sunos_mount_args *uap; register_t *retval; { int oflags = SCARG(uap, flags), nflags, error; extern char sigcode[], esigcode[]; char fsname[MFSNAMELEN]; #define szsigcode (esigcode - sigcode) if (oflags & (SUNM_NOSUB | SUNM_SYS5)) return (EINVAL); if ((oflags & SUNM_NEWTYPE) == 0) return (EINVAL); nflags = 0; if (oflags & SUNM_RDONLY) nflags |= MNT_RDONLY; if (oflags & SUNM_NOSUID) nflags |= MNT_NOSUID; if (oflags & SUNM_REMOUNT) nflags |= MNT_UPDATE; SCARG(uap, flags) = nflags; if (error = copyinstr((caddr_t)SCARG(uap, type), fsname, sizeof fsname, (size_t *)0)) return (error); if (strcmp(fsname, "4.2") == 0) { SCARG(uap, type) = STACKGAPBASE; if (error = copyout("ufs", SCARG(uap, type), sizeof("ufs"))) return (error); } else if (strcmp(fsname, "nfs") == 0) { struct sunos_nfs_args sna; struct sockaddr_in sain; struct nfs_args na; struct sockaddr sa; if (error = copyin(SCARG(uap, data), &sna, sizeof sna)) return (error); if (error = copyin(sna.addr, &sain, sizeof sain)) return (error); bcopy(&sain, &sa, sizeof sa); sa.sa_len = sizeof(sain); SCARG(uap, data) = STACKGAPBASE; na.addr = (struct sockaddr *)((int)SCARG(uap, data) + sizeof na); na.addrlen = sizeof(struct sockaddr); na.sotype = SOCK_DGRAM; na.proto = IPPROTO_UDP; na.fh = (nfsv2fh_t *)sna.fh; na.flags = sna.flags; na.wsize = sna.wsize; na.rsize = sna.rsize; na.timeo = sna.timeo; na.retrans = sna.retrans; na.hostname = sna.hostname; if (error = copyout(&sa, na.addr, sizeof sa)) return (error); if (error = copyout(&na, SCARG(uap, data), sizeof na)) return (error); } return (mount(p, (struct mount_args *)uap, retval)); } #if defined(NFSCLIENT) int async_daemon(p, uap, retval) struct proc *p; void *uap; register_t *retval; { struct nfssvc_args ouap; SCARG(&ouap, flag) = NFSSVC_BIOD; SCARG(&ouap, argp) = NULL; return nfssvc(p, &ouap, retval); } #endif /* NFSCLIENT */ int sunos_sigpending(p, uap, retval) struct proc *p; struct sunos_sigpending_args *uap; register_t *retval; { int mask = p->p_siglist & p->p_sigmask; return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); } /* * Read Sun-style directory entries. We suck them into kernel space so * that they can be massaged before being copied out to user code. Like * SunOS, we squish out `empty' entries. * * This is quite ugly, but what do you expect from compatibility code? */ int sunos_getdents(p, uap, retval) struct proc *p; register struct sunos_getdents_args *uap; register_t *retval; { register struct vnode *vp; register caddr_t inp, buf; /* BSD-format */ register int len, reclen; /* BSD-format */ register caddr_t outp; /* Sun-format */ register int resid; /* Sun-format */ struct file *fp; struct uio auio; struct iovec aiov; off_t off; /* true file offset */ long soff; /* Sun file offset */ int buflen, error, eofflag; #define BSD_DIRENT(cp) ((struct dirent *)(cp)) #define SUNOS_RECLEN(reclen) (reclen + sizeof(long)) if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) return (error); if ((fp->f_flag & FREAD) == 0) return (EBADF); vp = (struct vnode *)fp->f_data; if (vp->v_type != VDIR) /* XXX vnode readdir op should do this */ return (EINVAL); buflen = min(MAXBSIZE, SCARG(uap, nbytes)); buf = malloc(buflen, M_TEMP, M_WAITOK); VOP_LOCK(vp); off = fp->f_offset; again: aiov.iov_base = buf; aiov.iov_len = buflen; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_rw = UIO_READ; auio.uio_segflg = UIO_SYSSPACE; auio.uio_procp = p; auio.uio_resid = buflen; auio.uio_offset = off; /* * First we read into the malloc'ed buffer, then * we massage it into user space, one record at a time. */ if (error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, (u_long *)0, 0)) goto out; inp = buf; outp = SCARG(uap, buf); resid = SCARG(uap, nbytes); if ((len = buflen - auio.uio_resid) == 0) goto eof; for (; len > 0; len -= reclen) { reclen = ((struct dirent *)inp)->d_reclen; if (reclen & 3) panic("sunos_getdents"); off += reclen; /* each entry points to next */ if (BSD_DIRENT(inp)->d_fileno == 0) { inp += reclen; /* it is a hole; squish it out */ continue; } if (reclen > len || resid < SUNOS_RECLEN(reclen)) { /* entry too big for buffer, so just stop */ outp++; break; } /* * Massage in place to make a Sun-shaped dirent (otherwise * we have to worry about touching user memory outside of * the copyout() call). */ BSD_DIRENT(inp)->d_reclen = SUNOS_RECLEN(reclen); #if notdef BSD_DIRENT(inp)->d_type = 0; /* 4.4 specific */ #endif soff = off; if ((error = copyout((caddr_t)&soff, outp, sizeof soff)) != 0 || (error = copyout(inp, outp + sizeof soff, reclen)) != 0) goto out; /* advance past this real entry */ inp += reclen; /* advance output past Sun-shaped entry */ outp += SUNOS_RECLEN(reclen); resid -= SUNOS_RECLEN(reclen); } /* if we squished out the whole block, try again */ if (outp == SCARG(uap, buf)) goto again; fp->f_offset = off; /* update the vnode offset */ eof: *retval = SCARG(uap, nbytes) - resid; out: VOP_UNLOCK(vp); free(buf, M_TEMP); return (error); } #define SUNOS__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ int sunos_mmap(p, uap, retval) register struct proc *p; register struct sunos_mmap_args *uap; register_t *retval; { struct mmap_args ouap; register struct filedesc *fdp; register struct file *fp; register struct vnode *vp; /* * Verify the arguments. */ if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) return (EINVAL); /* XXX still needed? */ if ((SCARG(uap, flags) & SUNOS__MAP_NEW) == 0) return (EINVAL); SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUNOS__MAP_NEW; SCARG(&ouap, addr) = SCARG(uap, addr); if ((SCARG(&ouap, flags) & MAP_FIXED) == 0 && SCARG(&ouap, addr) != 0 && SCARG(&ouap, addr) < (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ)) SCARG(&ouap, addr) = (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ); SCARG(&ouap, len) = SCARG(uap, len); SCARG(&ouap, prot) = SCARG(uap, prot); SCARG(&ouap, fd) = SCARG(uap, fd); SCARG(&ouap, pos) = SCARG(uap, pos); /* * Special case: if fd refers to /dev/zero, map as MAP_ANON. (XXX) */ fdp = p->p_fd; if ((unsigned)SCARG(&ouap, fd) < fdp->fd_nfiles && /*XXX*/ (fp = fdp->fd_ofiles[SCARG(&ouap, fd)]) != NULL && /*XXX*/ fp->f_type == DTYPE_VNODE && /*XXX*/ (vp = (struct vnode *)fp->f_data)->v_type == VCHR && /*XXX*/ iszerodev(vp->v_rdev)) { /*XXX*/ SCARG(&ouap, flags) |= MAP_ANON; SCARG(&ouap, fd) = -1; } return (mmap(p, &ouap, retval)); } #define MC_SYNC 1 #define MC_LOCK 2 #define MC_UNLOCK 3 #define MC_ADVISE 4 #define MC_LOCKAS 5 #define MC_UNLOCKAS 6 int sunos_mctl(p, uap, retval) register struct proc *p; register struct sunos_mctl_args *uap; register_t *retval; { switch (SCARG(uap, func)) { case MC_ADVISE: /* ignore for now */ return (0); case MC_SYNC: /* translate to msync */ return (msync(p, uap, retval)); default: return (EINVAL); } } int sunos_setsockopt(p, uap, retval) struct proc *p; register struct sunos_setsockopt_args *uap; register_t *retval; { struct file *fp; struct mbuf *m = NULL; int error; if (error = getsock(p->p_fd, SCARG(uap, s), &fp)) return (error); #define SO_DONTLINGER (~SO_LINGER) if (SCARG(uap, name) == SO_DONTLINGER) { m = m_get(M_WAIT, MT_SOOPTS); if (m == NULL) return (ENOBUFS); mtod(m, struct linger *)->l_onoff = 0; m->m_len = sizeof(struct linger); return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), SO_LINGER, m)); } if (SCARG(uap, level) == IPPROTO_IP) { #define SUNOS_IP_MULTICAST_IF 2 #define SUNOS_IP_MULTICAST_TTL 3 #define SUNOS_IP_MULTICAST_LOOP 4 #define SUNOS_IP_ADD_MEMBERSHIP 5 #define SUNOS_IP_DROP_MEMBERSHIP 6 static int ipoptxlat[] = { IP_MULTICAST_IF, IP_MULTICAST_TTL, IP_MULTICAST_LOOP, IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP }; if (SCARG(uap, name) >= SUNOS_IP_MULTICAST_IF && SCARG(uap, name) <= SUNOS_IP_DROP_MEMBERSHIP) { SCARG(uap, name) = ipoptxlat[SCARG(uap, name) - SUNOS_IP_MULTICAST_IF]; } } if (SCARG(uap, valsize) > MLEN) return (EINVAL); if (SCARG(uap, val)) { m = m_get(M_WAIT, MT_SOOPTS); if (m == NULL) return (ENOBUFS); if (error = copyin(SCARG(uap, val), mtod(m, caddr_t), (u_int)SCARG(uap, valsize))) { (void) m_free(m); return (error); } m->m_len = SCARG(uap, valsize); } return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), SCARG(uap, name), m)); } int sunos_fchroot(p, uap, retval) register struct proc *p; register struct sunos_fchroot_args *uap; register_t *retval; { register struct filedesc *fdp = p->p_fd; register struct vnode *vp; struct file *fp; int error; if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) return (error); if ((error = getvnode(fdp, SCARG(uap, fd), &fp)) != 0) return (error); vp = (struct vnode *)fp->f_data; VOP_LOCK(vp); if (vp->v_type != VDIR) error = ENOTDIR; else error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p); VOP_UNLOCK(vp); if (error) return (error); VREF(vp); if (fdp->fd_rdir != NULL) vrele(fdp->fd_rdir); fdp->fd_rdir = vp; return (0); } /* * XXX: This needs cleaning up. */ int sunos_auditsys(p, uap, retval) struct proc *p; void *uap; register_t *retval; { return 0; } int sunos_uname(p, uap, retval) struct proc *p; struct sunos_uname_args *uap; register_t *retval; { struct sunos_utsname sut; extern char ostype[], machine[], osrelease[]; bzero(&sut, sizeof(sut)); bcopy(ostype, sut.sysname, sizeof(sut.sysname) - 1); bcopy(hostname, sut.nodename, sizeof(sut.nodename)); sut.nodename[sizeof(sut.nodename)-1] = '\0'; bcopy(osrelease, sut.release, sizeof(sut.release) - 1); bcopy("1", sut.version, sizeof(sut.version) - 1); bcopy(machine, sut.machine, sizeof(sut.machine) - 1); return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), sizeof(struct sunos_utsname)); } int sunos_setpgid(p, uap, retval) struct proc *p; struct sunos_setpgid_args *uap; register_t *retval; { /* * difference to our setpgid call is to include backwards * compatibility to pre-setsid() binaries. Do setsid() * instead of setpgid() in those cases where the process * tries to create a new session the old way. */ if (!SCARG(uap, pgid) && (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) return setsid(p, uap, retval); else return setpgid(p, uap, retval); } int sunos_open(p, uap, retval) struct proc *p; struct sunos_open_args *uap; register_t *retval; { int l, r; int noctty; int ret; /* convert mode into NetBSD mode */ l = SCARG(uap, flags); noctty = l & 0x8000; r = (l & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800)); r |= ((l & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0); r |= ((l & 0x0080) ? O_SHLOCK : 0); r |= ((l & 0x0100) ? O_EXLOCK : 0); r |= ((l & 0x2000) ? O_FSYNC : 0); SCARG(uap, flags) = r; ret = open(p, (struct open_args *)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; } #if defined (NFSSERVER) int sunos_nfssvc(p, uap, retval) struct proc *p; struct sunos_nfssvc_args *uap; register_t *retval; { struct nfssvc_args outuap; struct nfsd_srvargs nfsdarg; struct sockaddr sa; int error; extern char sigcode[], esigcode[]; #if 0 bzero(&outuap, sizeof outuap); SCARG(&outuap, fd) = SCARG(uap, fd); SCARG(&outuap, mskval) = STACKGAPBASE; SCARG(&outuap, msklen) = sizeof sa; SCARG(&outuap, mtchval) = SCARG(&outuap, mskval) + sizeof sa; SCARG(&outuap, mtchlen) = sizeof sa; bzero(&sa, sizeof sa); if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) return (error); if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) return (error); return nfssvc(p, &outuap, retval); #else return (ENOSYS); #endif } #endif /* NFSSERVER */ int sunos_ustat(p, uap, retval) struct proc *p; struct sunos_ustat_args *uap; register_t *retval; { struct sunos_ustat us; int error; bzero(&us, sizeof us); /* * XXX: should set f_tfree and f_tinode at least * How do we translate dev -> fstat? (and then to sunos_ustat) */ if (error = copyout(&us, SCARG(uap, buf), sizeof us)) return (error); return 0; } int sunos_quotactl(p, uap, retval) struct proc *p; struct sunos_quotactl_args *uap; register_t *retval; { return EINVAL; } int sunos_vhangup(p, uap, retval) struct proc *p; void *uap; register_t *retval; { return 0; } static sunstatfs(sp, buf) struct statfs *sp; caddr_t buf; { struct sunos_statfs ssfs; bzero(&ssfs, sizeof ssfs); ssfs.f_type = 0; ssfs.f_bsize = sp->f_bsize; ssfs.f_blocks = sp->f_blocks; ssfs.f_bfree = sp->f_bfree; ssfs.f_bavail = sp->f_bavail; ssfs.f_files = sp->f_files; ssfs.f_ffree = sp->f_ffree; ssfs.f_fsid = sp->f_fsid; return copyout((caddr_t)&ssfs, buf, sizeof ssfs); } int sunos_statfs(p, uap, retval) struct proc *p; struct sunos_statfs_args *uap; register_t *retval; { register struct mount *mp; register struct statfs *sp; int error; struct nameidata nd; NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p); if (error = namei(&nd)) return (error); mp = nd.ni_vp->v_mount; sp = &mp->mnt_stat; vrele(nd.ni_vp); if (error = VFS_STATFS(mp, sp, p)) return (error); sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; return sunstatfs(sp, (caddr_t)SCARG(uap, buf)); } int sunos_fstatfs(p, uap, retval) struct proc *p; struct sunos_fstatfs_args *uap; register_t *retval; { struct file *fp; struct mount *mp; register struct statfs *sp; int error; if (error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) return (error); mp = ((struct vnode *)fp->f_data)->v_mount; sp = &mp->mnt_stat; if (error = VFS_STATFS(mp, sp, p)) return (error); sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; return sunstatfs(sp, (caddr_t)SCARG(uap, buf)); } int sunos_exportfs(p, uap, retval) struct proc *p; struct sunos_exportfs_args *uap; register_t *retval; { /* * XXX: should perhaps translate into a mount(2) * with MOUNT_EXPORT? */ return 0; } int sunos_mknod(p, uap, retval) struct proc *p; struct sunos_mknod_args *uap; register_t *retval; { if (S_ISFIFO(SCARG(uap, mode))) return mkfifo(p, uap, retval); return mknod(p, (struct mknod_args *)uap, retval); } #define SUNOS_SC_ARG_MAX 1 #define SUNOS_SC_CHILD_MAX 2 #define SUNOS_SC_CLK_TCK 3 #define SUNOS_SC_NGROUPS_MAX 4 #define SUNOS_SC_OPEN_MAX 5 #define SUNOS_SC_JOB_CONTROL 6 #define SUNOS_SC_SAVED_IDS 7 #define SUNOS_SC_VERSION 8 int sunos_sysconf(p, uap, retval) struct proc *p; struct sunos_sysconf_args *uap; register_t *retval; { extern int maxfiles; switch(SCARG(uap, name)) { case SUNOS_SC_ARG_MAX: *retval = ARG_MAX; break; case SUNOS_SC_CHILD_MAX: *retval = maxproc; break; case SUNOS_SC_CLK_TCK: *retval = 60; /* should this be `hz', ie. 100? */ break; case SUNOS_SC_NGROUPS_MAX: *retval = NGROUPS_MAX; break; case SUNOS_SC_OPEN_MAX: *retval = maxfiles; break; case SUNOS_SC_JOB_CONTROL: *retval = 1; break; case SUNOS_SC_SAVED_IDS: #ifdef _POSIX_SAVED_IDS *retval = 1; #else *retval = 0; #endif break; case SUNOS_SC_VERSION: *retval = 198808; break; default: return EINVAL; } return 0; } #define SUNOS_RLIMIT_NOFILE 6 /* Other RLIMIT_* are the same */ #define SUNOS_RLIM_NLIMITS 7 int sunos_getrlimit(p, uap, retval) struct proc *p; struct sunos_getrlimit_args *uap; register_t *retval; { if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS) return EINVAL; if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE) SCARG(uap, which) = RLIMIT_NOFILE; return compat_43_getrlimit(p, uap, retval); } int sunos_setrlimit(p, uap, retval) struct proc *p; struct sunos_getrlimit_args *uap; register_t *retval; { if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS) return EINVAL; if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE) SCARG(uap, which) = RLIMIT_NOFILE; return compat_43_setrlimit(p, uap, retval); } /* for the m68k machines */ #ifndef PT_GETFPREGS #define PT_GETFPREGS -1 #endif #ifndef PT_SETFPREGS #define PT_SETFPREGS -1 #endif static int sreq2breq[] = { PT_TRACE_ME, PT_READ_I, PT_READ_D, -1, PT_WRITE_I, PT_WRITE_D, -1, PT_CONTINUE, PT_KILL, -1, PT_ATTACH, PT_DETACH, PT_GETREGS, PT_SETREGS, PT_GETFPREGS, PT_SETFPREGS }; static int nreqs = sizeof(sreq2breq) / sizeof(sreq2breq[0]); sunos_ptrace(p, uap, retval) struct proc *p; struct sunos_ptrace_args *uap; int *retval; { struct ptrace_args pa; int req; req = SCARG(uap, req); if (req < 0 || req >= nreqs) return (EINVAL); req = sreq2breq[req]; if (req == -1) return (EINVAL); SCARG(&pa, req) = req; SCARG(&pa, pid) = (pid_t)SCARG(uap, pid); SCARG(&pa, addr) = (caddr_t)SCARG(uap, addr); SCARG(&pa, data) = SCARG(uap, data); return ptrace(p, &pa, retval); } static void sunos_pollscan(p, pl, nfd, retval) struct proc *p; struct sunos_pollfd *pl; int nfd; register_t *retval; { register struct filedesc *fdp = p->p_fd; register int msk, i; struct file *fp; int n = 0; static int flag[3] = { FREAD, FWRITE, 0 }; static int pflag[3] = { SUNOS_POLLIN|SUNOS_POLLRDNORM, SUNOS_POLLOUT, SUNOS_POLLERR }; /* * XXX: We need to implement the rest of the flags. */ for (i = 0; i < nfd; i++) { fp = fdp->fd_ofiles[pl[i].fd]; if (fp == NULL) { if (pl[i].events & SUNOS_POLLNVAL) { pl[i].revents |= SUNOS_POLLNVAL; n++; } continue; } for (msk = 0; msk < 3; msk++) { if (pl[i].events & pflag[msk]) { if ((*fp->f_ops->fo_select)(fp, flag[msk], p)) { pl[i].revents |= pflag[msk] & pl[i].events; n++; } } } } *retval = n; } /* * We are using the same mechanism as select only we encode/decode args * differently. */ int sunos_poll(p, uap, retval) struct proc *p; struct sunos_poll_args *uap; register_t *retval; { int i, s; int error, error2; size_t sz = sizeof(struct sunos_pollfd) * SCARG(uap, nfds); struct sunos_pollfd *pl; int msec = SCARG(uap, timeout); struct timeval atv; int timo; u_int ni; int ncoll; extern int nselcoll, selwait; pl = (struct sunos_pollfd *) malloc(sz, M_TEMP, M_WAITOK); if (error = copyin(SCARG(uap, fds), pl, sz)) goto bad; for (i = 0; i < SCARG(uap, nfds); i++) pl[i].revents = 0; if (msec != -1) { atv.tv_sec = msec / 1000; atv.tv_usec = (msec - (atv.tv_sec * 1000)) * 1000; if (itimerfix(&atv)) { error = EINVAL; goto done; } s = splclock(); timeradd(&atv, &time, &atv); timo = hzto(&atv); /* * Avoid inadvertently sleeping forever. */ if (timo == 0) timo = 1; splx(s); } else timo = 0; retry: ncoll = nselcoll; p->p_flag |= P_SELECT; sunos_pollscan(p, pl, SCARG(uap, nfds), retval); if (*retval) goto done; s = splhigh(); if (timo && timercmp(&time, &atv, >=)) { splx(s); goto done; } if ((p->p_flag & P_SELECT) == 0 || nselcoll != ncoll) { splx(s); goto retry; } p->p_flag &= ~P_SELECT; error = tsleep((caddr_t)&selwait, PSOCK | PCATCH, "sunos_poll", timo); splx(s); if (error == 0) goto retry; done: p->p_flag &= ~P_SELECT; /* poll is not restarted after signals... */ if (error == ERESTART) error = EINTR; if (error == EWOULDBLOCK) error = 0; if (error2 = copyout(pl, SCARG(uap, fds), sz)) error = error2; bad: free((char *) pl, M_TEMP); return (error); }