2 * Implements HPUX syscalls.
4 * Copyright (C) 1999 Matthew Wilcox <willy with parisc-linux.org>
5 * Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
6 * Copyright (C) 2000 John Marvin <jsm with parisc-linux.org>
7 * Copyright (C) 2000 Philipp Rumpf
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/kernel.h>
27 #include <linux/sched.h>
28 #include <linux/file.h>
29 #include <linux/ptrace.h>
30 #include <linux/slab.h>
31 #include <asm/errno.h>
32 #include <asm/uaccess.h>
34 int hpux_execve(struct pt_regs *regs)
36 return do_execve(getname((const char __user *) regs->gr[26]),
37 (const char __user *const __user *) regs->gr[25],
38 (const char __user *const __user *) regs->gr[24]);
49 struct getdents_callback {
50 struct dir_context ctx;
51 struct hpux_dirent __user *current_dir;
52 struct hpux_dirent __user *previous;
57 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
59 static int filldir(struct dir_context *ctx, const char *name, int namlen,
60 loff_t offset, u64 ino, unsigned d_type)
62 struct hpux_dirent __user * dirent;
63 struct getdents_callback *buf =
64 container_of(ctx, struct getdents_callback, ctx);
66 int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, sizeof(long));
68 buf->error = -EINVAL; /* only used if we fail.. */
69 if (reclen > buf->count)
72 if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
73 buf->error = -EOVERFLOW;
76 dirent = buf->previous;
78 if (put_user(offset, &dirent->d_off))
80 dirent = buf->current_dir;
81 if (put_user(d_ino, &dirent->d_ino) ||
82 put_user(reclen, &dirent->d_reclen) ||
83 put_user(namlen, &dirent->d_namlen) ||
84 copy_to_user(dirent->d_name, name, namlen) ||
85 put_user(0, dirent->d_name + namlen))
87 buf->previous = dirent;
88 buf->current_dir = (void __user *)dirent + reclen;
98 int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned int count)
101 struct hpux_dirent __user * lastdirent;
102 struct getdents_callback buf = {
103 .ctx.actor = filldir,
104 .current_dir = dirent,
113 error = iterate_dir(arg.file, &buf.ctx);
116 lastdirent = buf.previous;
118 if (put_user(buf.ctx.pos, &lastdirent->d_off))
121 error = count - buf.count;
128 int hpux_mount(const char *fs, const char *path, int mflag,
129 const char *fstype, const char *dataptr, int datalen)
134 static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 __user *statbuf)
136 struct hpux_stat64 tmp;
138 /* we probably want a different split here - is hpux 12:20? */
140 if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
143 memset(&tmp, 0, sizeof(tmp));
144 tmp.st_dev = new_encode_dev(stat->dev);
145 tmp.st_ino = stat->ino;
146 tmp.st_mode = stat->mode;
147 tmp.st_nlink = stat->nlink;
148 tmp.st_uid = from_kuid_munged(current_user_ns(), stat->uid);
149 tmp.st_gid = from_kgid_munged(current_user_ns(), stat->gid);
150 tmp.st_rdev = new_encode_dev(stat->rdev);
151 tmp.st_size = stat->size;
152 tmp.st_atime = stat->atime.tv_sec;
153 tmp.st_mtime = stat->mtime.tv_sec;
154 tmp.st_ctime = stat->ctime.tv_sec;
155 tmp.st_blocks = stat->blocks;
156 tmp.st_blksize = stat->blksize;
157 return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
160 long hpux_stat64(const char __user *filename, struct hpux_stat64 __user *statbuf)
163 int error = vfs_stat(filename, &stat);
166 error = cp_hpux_stat(&stat, statbuf);
171 long hpux_fstat64(unsigned int fd, struct hpux_stat64 __user *statbuf)
174 int error = vfs_fstat(fd, &stat);
177 error = cp_hpux_stat(&stat, statbuf);
182 long hpux_lstat64(const char __user *filename,
183 struct hpux_stat64 __user *statbuf)
186 int error = vfs_lstat(filename, &stat);
189 error = cp_hpux_stat(&stat, statbuf);