patch-2.1.53 linux/arch/sparc64/solaris/fs.c

• Lines: 712
• Date: Thu Sep 4 12:54:48 1997
• Orig file: v2.1.52/linux/arch/sparc64/solaris/fs.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.52/linux/arch/sparc64/solaris/fs.c linux/arch/sparc64/solaris/fs.c
@@ -0,0 +1,711 @@
+/* $Id: fs.c,v 1.4 1997/09/04 15:46:26 jj Exp $
+ * fs.c: fs related syscall emulation for Solaris
+ *
+ * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/smp_lock.h>
+#include <linux/limits.h>
+#include <linux/resource.h>
+
+#include <asm/uaccess.h>
+#include <asm/string.h>
+#include <asm/ptrace.h>
+
+#include "conv.h"
+
+extern char * getname32(u32 filename);
+#define putname32 putname
+ 
+#define R4_DEV(DEV) ((DEV & 0xff) | ((DEV & 0xff00) << 10))
+#define R4_MAJOR(DEV) (((DEV) >> 18) & 0x3fff)
+#define R4_MINOR(DEV) ((DEV) & 0x3ffff)
+#define R3_VERSION	1
+#define R4_VERSION	2
+
+typedef struct {
+	s32	tv_sec;
+	s32	tv_nsec;
+} timestruct_t;
+
+struct sol_stat {
+	u32		st_dev;
+	s32		st_pad1[3];     /* network id */
+	u32		st_ino;
+	u32		st_mode;
+	u32		st_nlink;
+	u32		st_uid;
+	u32		st_gid;
+	u32		st_rdev;
+	s32		st_pad2[2];
+	s32		st_size;
+	s32		st_pad3;	/* st_size, off_t expansion */
+	timestruct_t	st_atime;
+	timestruct_t	st_mtime;
+	timestruct_t	st_ctime;
+	s32		st_blksize;
+	s32		st_blocks;
+	char		st_fstype[16];
+	s32		st_pad4[8];     /* expansion area */
+};
+
+#define UFSMAGIC (((unsigned)'u'<<24)||((unsigned)'f'<<16)||((unsigned)'s'<<8))
+
+static inline int putstat(struct sol_stat *ubuf, struct stat *kbuf)
+{
+	if (put_user (R4_DEV(kbuf->st_dev), &ubuf->st_dev)	||
+	    __put_user (kbuf->st_ino, &ubuf->st_ino)		||
+	    __put_user (kbuf->st_mode, &ubuf->st_mode)		||
+	    __put_user (kbuf->st_nlink, &ubuf->st_nlink)	||
+	    __put_user (kbuf->st_uid, &ubuf->st_uid)		||
+	    __put_user (kbuf->st_gid, &ubuf->st_gid)		||
+	    __put_user (R4_DEV(kbuf->st_rdev), &ubuf->st_rdev)	||
+	    __put_user (kbuf->st_size, &ubuf->st_size)		||
+	    __put_user (kbuf->st_atime, &ubuf->st_atime.tv_sec)	||
+	    __put_user (0, &ubuf->st_atime.tv_nsec)		||
+	    __put_user (kbuf->st_mtime, &ubuf->st_mtime.tv_sec)	||
+	    __put_user (0, &ubuf->st_mtime.tv_nsec)		||
+	    __put_user (kbuf->st_ctime, &ubuf->st_ctime.tv_sec)	||
+	    __put_user (0, &ubuf->st_ctime.tv_nsec)		||
+	    __put_user (kbuf->st_blksize, &ubuf->st_blksize)	||
+	    __put_user (kbuf->st_blocks, &ubuf->st_blocks)	||
+	    __put_user (UFSMAGIC, (unsigned *)ubuf->st_fstype))
+		return -EFAULT;
+	return 0;
+}
+
+asmlinkage int solaris_stat(u32 filename, u32 statbuf)
+{
+	int ret;
+	struct stat s;
+	char *filenam;
+	unsigned long old_fs = get_fs();
+	int (*sys_newstat)(char *,struct stat *) = 
+		(int (*)(char *,struct stat *))SYS(stat);
+	
+	filenam = getname32 (filename);
+	ret = PTR_ERR(filenam);
+	if (!IS_ERR(filenam)) {
+		set_fs (KERNEL_DS);
+		ret = sys_newstat(filenam, &s);
+		set_fs (old_fs);
+		putname32 (filenam);
+		if (putstat ((struct sol_stat *)A(statbuf), &s))
+			return -EFAULT;
+	}
+	return ret;
+}
+
+asmlinkage int solaris_xstat(int vers, u32 filename, u32 statbuf)
+{
+	/* Solaris doesn't bother with looking at vers, so we do neither */
+	return solaris_stat(filename, statbuf);
+}
+
+asmlinkage int solaris_lstat(u32 filename, u32 statbuf)
+{
+	int ret;
+	struct stat s;
+	char *filenam;
+	unsigned long old_fs = get_fs();
+	int (*sys_newlstat)(char *,struct stat *) = 
+		(int (*)(char *,struct stat *))SYS(lstat);
+	
+	filenam = getname32 (filename);
+	ret = PTR_ERR(filenam);
+	if (!IS_ERR(filenam)) {
+		set_fs (KERNEL_DS);
+		ret = sys_newlstat(filenam, &s);
+		set_fs (old_fs);
+		putname32 (filenam);
+		if (putstat ((struct sol_stat *)A(statbuf), &s))
+			return -EFAULT;
+	}
+	return ret;
+}
+
+asmlinkage int solaris_lxstat(int vers, u32 filename, u32 statbuf)
+{
+	return solaris_lstat(filename, statbuf);
+}
+
+asmlinkage int solaris_fstat(unsigned int fd, u32 statbuf)
+{
+	int ret;
+	struct stat s;
+	unsigned long old_fs = get_fs();
+	int (*sys_newfstat)(unsigned,struct stat *) = 
+		(int (*)(unsigned,struct stat *))SYS(fstat);
+	
+	set_fs (KERNEL_DS);
+	ret = sys_newfstat(fd, &s);
+	set_fs (old_fs);
+	if (putstat ((struct sol_stat *)A(statbuf), &s))
+		return -EFAULT;
+	return ret;
+}
+
+asmlinkage int solaris_fxstat(int vers, u32 fd, u32 statbuf)
+{
+	return solaris_fstat(fd, statbuf);
+}
+
+asmlinkage int solaris_mknod(u32 path, u32 mode, s32 dev)
+{
+	int (*sys_mknod)(const char *,int,dev_t) = 
+		(int (*)(const char *,int,dev_t))SYS(mknod);
+	int major, minor;
+
+	if ((major = R4_MAJOR(dev)) > 255 || 
+	    (minor = R4_MINOR(dev)) > 255) return -EINVAL;
+	return sys_mknod((const char *)A(path), mode, MKDEV(major,minor));
+}
+
+asmlinkage int solaris_xmknod(int vers, u32 path, u32 mode, s32 dev)
+{
+	return solaris_mknod(path, mode, dev);
+}
+
+/* This statfs thingie probably will go in the near future, but... */
+
+struct sol_statfs {
+	short	f_type;
+	s32	f_bsize;
+	s32	f_frsize;
+	s32	f_blocks;
+	s32	f_bfree;
+	u32	f_files;
+	u32	f_ffree;
+	char	f_fname[6];
+	char	f_fpack[6];
+};
+
+asmlinkage int solaris_statfs(u32 path, u32 buf, int len, int fstype)
+{
+	int ret;
+	struct statfs s;
+	unsigned long old_fs = get_fs();
+	int (*sys_statfs)(const char *,struct statfs *) = 
+		(int (*)(const char *,struct statfs *))SYS(statfs);
+	struct sol_statfs *ss = (struct sol_statfs *)A(buf);
+	
+	if (len != sizeof(struct sol_statfs)) return -EINVAL;
+	if (!fstype) {
+		set_fs (KERNEL_DS);
+		ret = sys_statfs((const char *)A(path), &s);
+		set_fs (old_fs);
+		if (!ret) {
+			if (put_user (s.f_type, &ss->f_type)		||
+			    __put_user (s.f_bsize, &ss->f_bsize)	||
+			    __put_user (0, &ss->f_frsize)		||
+			    __put_user (s.f_blocks, &ss->f_blocks)	||
+			    __put_user (s.f_bfree, &ss->f_bfree)	||
+			    __put_user (s.f_files, &ss->f_files)	||
+			    __put_user (s.f_ffree, &ss->f_ffree)	||
+			    __clear_user (&ss->f_fname, 12))
+				return -EFAULT;
+		}
+		return ret;
+	}
+/* Linux can't stat unmounted filesystems so we
+ * simply lie and claim 100MB of 1GB is free. Sorry.
+ */
+	if (put_user (fstype, &ss->f_type)		||
+	    __put_user (1024, &ss->f_bsize)		||
+	    __put_user (0, &ss->f_frsize)		||
+	    __put_user (1024*1024, &ss->f_blocks)	||
+	    __put_user (100*1024, &ss->f_bfree)		||
+	    __put_user (60000, &ss->f_files)		||
+	    __put_user (50000, &ss->f_ffree)		||
+	    __clear_user (&ss->f_fname, 12))
+		return -EFAULT;
+	return 0;
+}
+
+asmlinkage int solaris_fstatfs(u32 fd, u32 buf, int len, int fstype)
+{
+	int ret;
+	struct statfs s;
+	unsigned long old_fs = get_fs();
+	int (*sys_fstatfs)(unsigned,struct statfs *) = 
+		(int (*)(unsigned,struct statfs *))SYS(fstatfs);
+	struct sol_statfs *ss = (struct sol_statfs *)A(buf);
+	
+	if (len != sizeof(struct sol_statfs)) return -EINVAL;
+	if (!fstype) {
+		set_fs (KERNEL_DS);
+		ret = sys_fstatfs(fd, &s);
+		set_fs (old_fs);
+		if (!ret) {
+			if (put_user (s.f_type, &ss->f_type)		||
+			    __put_user (s.f_bsize, &ss->f_bsize)	||
+			    __put_user (0, &ss->f_frsize)		||
+			    __put_user (s.f_blocks, &ss->f_blocks)	||
+			    __put_user (s.f_bfree, &ss->f_bfree)	||
+			    __put_user (s.f_files, &ss->f_files)	||
+			    __put_user (s.f_ffree, &ss->f_ffree)	||
+			    __clear_user (&ss->f_fname, 12))
+				return -EFAULT;
+		}
+		return ret;
+	}
+	/* Otherwise fstatfs is the same as statfs */
+	return solaris_statfs(0, buf, len, fstype);
+}
+
+struct sol_statvfs {
+	u32	f_bsize;
+	u32	f_frsize;
+	u32	f_blocks;
+	u32	f_bfree;
+	u32	f_bavail;
+	u32	f_files;
+	u32	f_ffree;
+	u32	f_favail;
+	u32	f_fsid;
+	char	f_basetype[16];
+	u32	f_flag;
+	u32	f_namemax;
+	char	f_fstr[32];
+	u32	f_filler[16];
+};
+
+static int report_statvfs(struct inode *inode, u32 buf)
+{
+	struct statfs s;
+	unsigned long old_fs = get_fs();
+	int error;
+	struct sol_statvfs *ss = (struct sol_statvfs *)A(buf);
+			
+	set_fs (KERNEL_DS);
+	error = inode->i_sb->s_op->statfs(inode->i_sb, &s, sizeof(struct statfs));
+	set_fs (old_fs);
+	if (!error) {
+		const char *p = inode->i_sb->s_type->name;
+		int i = 0;
+		int j = strlen (p);
+		
+		if (j > 15) j = 15;
+		if (IS_RDONLY(inode)) i = 1;
+		if (IS_NOSUID(inode)) i |= 2;
+		if (put_user (s.f_bsize, &ss->f_bsize)		||
+		    __put_user (0, &ss->f_frsize)		||
+		    __put_user (s.f_blocks, &ss->f_blocks)	||
+		    __put_user (s.f_bfree, &ss->f_bfree)	||
+		    __put_user (s.f_bavail, &ss->f_bavail)	||
+		    __put_user (s.f_files, &ss->f_files)	||
+		    __put_user (s.f_ffree, &ss->f_ffree)	||
+		    __put_user (s.f_ffree, &ss->f_favail)	||
+		    __put_user (R4_DEV(inode->i_sb->s_dev), &ss->f_fsid) ||
+		    __copy_to_user (ss->f_basetype,p,j)		||
+		    __put_user (0, (char *)&ss->f_basetype[j])	||
+		    __put_user (s.f_namelen, &ss->f_namemax)	||
+		    __put_user (i, &ss->f_flag)			||		    
+		    __clear_user (&ss->f_fstr, 32))
+			return -EFAULT;
+	}
+	return error;
+}
+
+asmlinkage int solaris_statvfs(u32 path, u32 buf)
+{
+	struct dentry * dentry;
+	int error;
+
+	lock_kernel();
+	dentry = namei((const char *)A(path));
+	error = PTR_ERR(dentry);
+	if (!IS_ERR(dentry)) {
+		struct inode * inode = dentry->d_inode;
+
+		error = -ENOSYS;
+		if (inode->i_sb->s_op->statfs)
+			error = report_statvfs(inode, buf);
+		dput(dentry);
+	}
+	unlock_kernel();
+	return error;
+}
+
+asmlinkage int solaris_fstatvfs(unsigned int fd, u32 buf)
+{
+	struct inode * inode;
+	struct dentry * dentry;
+	struct file * file;
+	int error;
+
+	lock_kernel();
+	if (fd >= NR_OPEN || !(file = current->files->fd[fd]))
+		error = -EBADF;
+	else if (!(dentry = file->f_dentry))
+		error = -ENOENT;
+	else if (!(inode = dentry->d_inode))
+		error = -ENOENT;
+	else if (!inode->i_sb)
+		error = -ENODEV;
+	else if (!inode->i_sb->s_op->statfs)
+		error = -ENOSYS;
+	else
+		error = report_statvfs(inode, buf);
+	unlock_kernel();
+	return error;
+}
+
+asmlinkage int solaris_open(u32 filename, int flags, u32 mode)
+{
+	int (*sys_open)(const char *,int,int) = 
+		(int (*)(const char *,int,int))SYS(open);
+	int fl = flags & 0xf;
+	
+	if (flags & 0x8050) fl |= O_SYNC;
+	if (flags & 0x80) fl |= O_NONBLOCK;
+	if (flags & 0x100) fl |= O_CREAT;
+	if (flags & 0x200) fl |= O_TRUNC;
+	if (flags & 0x400) fl |= O_EXCL;
+	if (flags & 0x800) fl |= O_NOCTTY;
+	return sys_open((const char *)A(filename), fl, mode);
+}
+
+#define SOL_F_SETLK	6
+#define SOL_F_SETLKW	7
+#define SOL_F_FREESP    11
+#define SOL_F_ISSTREAM  13
+#define SOL_F_GETLK     14
+#define SOL_F_PRIV      15
+#define SOL_F_NPRIV     16
+#define SOL_F_QUOTACTL  17
+#define SOL_F_BLOCKS    18
+#define SOL_F_BLKSIZE   19
+#define SOL_F_GETOWN    23
+#define SOL_F_SETOWN    24
+
+struct sol_flock {
+	short	l_type;
+	short	l_whence;
+	u32	l_start;
+	u32	l_len;
+	s32	l_sysid;
+	s32	l_pid;
+	s32	l_pad[4];
+};
+
+asmlinkage int solaris_fcntl(unsigned fd, unsigned cmd, u32 arg)
+{
+	int (*sys_fcntl)(unsigned,unsigned,unsigned long) = 
+		(int (*)(unsigned,unsigned,unsigned long))SYS(fcntl);
+	int ret, flags;
+
+	switch (cmd) {
+	case F_DUPFD:
+	case F_GETFD:
+	case F_SETFD: return sys_fcntl(fd, cmd, (unsigned long)arg);
+	case F_GETFL:
+		flags = sys_fcntl(fd, cmd, 0);
+		ret = flags & 0xf;
+		if (flags & O_SYNC) ret |= 0x8050;
+		if (flags & O_NONBLOCK) ret |= 0x80;
+		return ret;
+	case F_SETFL:
+		flags = arg & 0xf;
+		if (arg & 0x8050) flags |= O_SYNC;
+		if (arg & 0x80) flags |= O_NONBLOCK;
+		return sys_fcntl(fd, cmd, (long)flags);
+	case SOL_F_GETLK:
+	case SOL_F_SETLK:
+	case SOL_F_SETLKW:
+		{
+			struct flock f;
+			unsigned long old_fs = get_fs();
+
+			switch (cmd) {
+			case SOL_F_GETLK: cmd = F_GETLK; break;
+			case SOL_F_SETLK: cmd = F_SETLK; break;
+			case SOL_F_SETLKW: cmd = F_SETLKW; break;
+			}
+
+			get_user_ret (f.l_type, &((struct sol_flock *)A(arg))->l_type, -EFAULT);
+			__get_user_ret (f.l_whence, &((struct sol_flock *)A(arg))->l_whence, -EFAULT);
+			__get_user_ret (f.l_start, &((struct sol_flock *)A(arg))->l_start, -EFAULT);
+			__get_user_ret (f.l_len, &((struct sol_flock *)A(arg))->l_len, -EFAULT);
+			__get_user_ret (f.l_pid, &((struct sol_flock *)A(arg))->l_sysid, -EFAULT);
+			set_fs(KERNEL_DS);
+			ret = sys_fcntl(fd, cmd, (unsigned long)&f);
+			set_fs(old_fs);
+			__put_user_ret (f.l_type, &((struct sol_flock *)A(arg))->l_type, -EFAULT);
+			__put_user_ret (f.l_whence, &((struct sol_flock *)A(arg))->l_whence, -EFAULT);
+			__put_user_ret (f.l_start, &((struct sol_flock *)A(arg))->l_start, -EFAULT);
+			__put_user_ret (f.l_len, &((struct sol_flock *)A(arg))->l_len, -EFAULT);
+			__put_user_ret (f.l_pid, &((struct sol_flock *)A(arg))->l_pid, -EFAULT);
+			__put_user_ret (0, &((struct sol_flock *)A(arg))->l_sysid, -EFAULT);
+			return ret;
+		}
+	}
+	return -EINVAL;
+}
+
+asmlinkage int solaris_ulimit(int cmd, int val)
+{
+	switch (cmd) {
+	case 1: /* UL_GETFSIZE - in 512B chunks */
+		return current->rlim[RLIMIT_FSIZE].rlim_cur >> 9;
+	case 2: /* UL_SETFSIZE */
+		if ((unsigned long)val > (LONG_MAX>>9)) return -ERANGE;
+		val <<= 9;
+		lock_kernel();
+		if (val > current->rlim[RLIMIT_FSIZE].rlim_max) {
+			if (!suser()) {
+				unlock_kernel();
+				return -EPERM;
+			}
+			current->rlim[RLIMIT_FSIZE].rlim_max = val;
+		}
+		current->rlim[RLIMIT_FSIZE].rlim_cur = val;
+		unlock_kernel();
+		return 0;
+	case 3: /* UL_GMEMLIM */
+		return current->rlim[RLIMIT_DATA].rlim_cur;
+	case 4: /* UL_GDESLIM */
+		return NR_OPEN;
+	}
+	return -EINVAL;
+}
+
+static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
+{
+	struct inode * inode;
+	struct iattr newattrs;
+	int error;
+
+	error = -ENOENT;
+	if (!(inode = dentry->d_inode)) {
+		printk("chown_common: NULL inode\n");
+		goto out;
+	}
+	error = -EROFS;
+	if (IS_RDONLY(inode))
+		goto out;
+	error = -EPERM;
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		goto out;
+	if (user == (uid_t) -1)
+		user = inode->i_uid;
+	if (group == (gid_t) -1)
+		group = inode->i_gid;
+	newattrs.ia_mode = inode->i_mode;
+	newattrs.ia_uid = user;
+	newattrs.ia_gid = group;
+	newattrs.ia_valid =  ATTR_UID | ATTR_GID | ATTR_CTIME;
+	/*
+	 * If the owner has been changed, remove the setuid bit
+	 */
+	if (inode->i_mode & S_ISUID) {
+		newattrs.ia_mode &= ~S_ISUID;
+		newattrs.ia_valid |= ATTR_MODE;
+	}
+	/*
+	 * If the group has been changed, remove the setgid bit
+	 *
+	 * Don't remove the setgid bit if no group execute bit.
+	 * This is a file marked for mandatory locking.
+	 */
+	if (((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) {
+		newattrs.ia_mode &= ~S_ISGID;
+		newattrs.ia_valid |= ATTR_MODE;
+	}
+	if (inode->i_sb && inode->i_sb->dq_op) {
+		inode->i_sb->dq_op->initialize(inode, -1);
+		error = -EDQUOT;
+		if (inode->i_sb->dq_op->transfer(inode, &newattrs, 0))
+			goto out;
+		error = notify_change(inode, &newattrs);
+		if (error)
+			inode->i_sb->dq_op->transfer(inode, &newattrs, 1);
+	} else
+		error = notify_change(inode, &newattrs);
+out:
+	return error;
+}
+
+/* Linux chown works like Solaris lchown. Solaris chown does follow symlink */
+asmlinkage int solaris_chown(u32 filename, s32 user, s32 group)
+{
+	struct dentry * dentry;
+	int error;
+
+	lock_kernel();
+	dentry = namei((const char *)A(filename));
+
+	error = PTR_ERR(dentry);
+	if (!IS_ERR(dentry)) {
+		error = chown_common(dentry, user, group);
+		dput(dentry);
+	}
+	unlock_kernel();
+	return error;
+}
+
+/* At least at the time I'm writing this, Linux doesn't have ACLs, so we
+   just fake this */
+asmlinkage int solaris_acl(u32 filename, int cmd, int nentries, u32 aclbufp)
+{
+	return -ENOSYS;
+}
+
+asmlinkage int solaris_facl(unsigned int fd, int cmd, int nentries, u32 aclbufp)
+{
+	return -ENOSYS;
+}
+
+asmlinkage int solaris_pread(int fd, u32 buf, u32 nbyte, s32 offset)
+{
+	off_t temp;
+	int retval;
+	struct file * file;
+	long (*sys_read)(unsigned int, char *, unsigned long) =
+		(long (*)(unsigned int, char *, unsigned long))SYS(read);
+	long (*sys_lseek)(unsigned int, off_t, unsigned int) =
+		(long (*)(unsigned int, off_t, unsigned int))SYS(lseek);
+	
+	lock_kernel();
+	retval = -EBADF;
+	if (fd >= NR_OPEN ||
+            !(file = current->files->fd[fd]))
+		goto bad;
+	temp = file->f_pos;
+	if (temp != offset) {
+		retval = sys_lseek(fd, offset, 0);
+		if (retval < 0) goto bad;
+	}
+	retval = sys_read(fd, (char *)A(buf), nbyte);
+	if (file->f_pos != temp) {
+		if (!retval)
+			retval = sys_lseek(fd, temp, 0);
+		else
+			sys_lseek(fd, temp, 0);
+	}
+bad:
+	unlock_kernel();
+	return retval;
+}
+
+asmlinkage int solaris_pwrite(int fd, u32 buf, u32 nbyte, s32 offset)
+{
+	off_t temp;
+	int retval;
+	struct file * file;
+	long (*sys_write)(unsigned int, char *, unsigned long) =
+		(long (*)(unsigned int, char *, unsigned long))SYS(read);
+	long (*sys_lseek)(unsigned int, off_t, unsigned int) =
+		(long (*)(unsigned int, off_t, unsigned int))SYS(lseek);
+	
+	lock_kernel();
+	retval = -EBADF;
+	if (fd >= NR_OPEN ||
+            !(file = current->files->fd[fd]))
+		goto bad;
+	temp = file->f_pos;
+	if (temp != offset) {
+		retval = sys_lseek(fd, offset, 0);
+		if (retval < 0) goto bad;
+	}
+	retval = sys_write(fd, (char *)A(buf), nbyte);
+	if (file->f_pos != temp) {
+		if (!retval)
+			retval = sys_lseek(fd, temp, 0);
+		else
+			sys_lseek(fd, temp, 0);
+	}
+bad:
+	unlock_kernel();
+	return retval;
+}
+
+/* POSIX.1 names */
+#define _PC_LINK_MAX    1
+#define _PC_MAX_CANON   2
+#define _PC_MAX_INPUT   3
+#define _PC_NAME_MAX    4
+#define _PC_PATH_MAX    5
+#define _PC_PIPE_BUF    6
+#define _PC_NO_TRUNC    7
+#define _PC_VDISABLE    8
+#define _PC_CHOWN_RESTRICTED    9
+/* POSIX.4 names */
+#define _PC_ASYNC_IO    10
+#define _PC_PRIO_IO     11
+#define _PC_SYNC_IO     12
+#define _PC_LAST        12
+
+/* This is not a real and complete implementation yet, just to keep
+ * the easy Solaris binaries happy.
+ */
+asmlinkage int solaris_fpathconf(int fd, int name)
+{
+	int ret;
+
+	switch(name) {
+	case _PC_LINK_MAX:
+		ret = LINK_MAX;
+		break;
+	case _PC_MAX_CANON:
+		ret = MAX_CANON;
+		break;
+	case _PC_MAX_INPUT:
+		ret = MAX_INPUT;
+		break;
+	case _PC_NAME_MAX:
+		ret = NAME_MAX;
+		break;
+	case _PC_PATH_MAX:
+		ret = PATH_MAX;
+		break;
+	case _PC_PIPE_BUF:
+		ret = PIPE_BUF;
+		break;
+	case _PC_CHOWN_RESTRICTED:
+		ret = 1;
+		break;
+	case _PC_NO_TRUNC:
+	case _PC_VDISABLE:
+		ret = 0;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+
+asmlinkage int solaris_pathconf(u32 path, int name)
+{
+	return solaris_fpathconf(0, name);
+}
+
+/* solaris_llseek returns long long - quite difficult */
+asmlinkage long solaris_llseek(struct pt_regs *regs, u32 off_hi, u32 off_lo, int whence)
+{
+	int (*sys_llseek)(unsigned int, unsigned long, unsigned long, loff_t *, unsigned int) =
+		(int (*)(unsigned int, unsigned long, unsigned long, loff_t *, unsigned int))SYS(_llseek);
+	int ret;
+	unsigned long old_fs = get_fs();
+	loff_t retval;
+	
+	set_fs(KERNEL_DS);
+	ret = sys_llseek((unsigned int)regs->u_regs[UREG_I0], off_hi, off_lo, &retval, whence);
+	set_fs(old_fs);
+	if (ret < 0) return ret;
+	regs->u_regs[UREG_I1] = (u32)retval;
+	return (retval >> 32);
+}
+
+/* Have to mask out all but lower 3 bits */
+asmlinkage int solaris_access(u32 filename, long mode)
+{
+	int (*sys_access)(const char *, int) = 
+		(int (*)(const char *, int))SYS(access);
+		
+	return sys_access((const char *)A(filename), mode & 7);
+}