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/slab.h>
30 #include <linux/ptrace.h>
31 #include <asm/errno.h>
32 #include <asm/uaccess.h>
34 int hpux_execve(struct pt_regs *regs)
39 filename = getname((char __user *) regs->gr[26]);
40 error = PTR_ERR(filename);
44 error = do_execve(filename, (char __user * __user *) regs->gr[25],
45 (char __user * __user *) regs->gr[24], regs);
49 current->ptrace &= ~PT_DTRACE;
66 struct getdents_callback {
67 struct hpux_dirent __user *current_dir;
68 struct hpux_dirent __user *previous;
73 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
75 static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
76 u64 ino, unsigned d_type)
78 struct hpux_dirent __user * dirent;
79 struct getdents_callback * buf = (struct getdents_callback *) __buf;
81 int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, sizeof(long));
83 buf->error = -EINVAL; /* only used if we fail.. */
84 if (reclen > buf->count)
87 if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
88 buf->error = -EOVERFLOW;
91 dirent = buf->previous;
93 if (put_user(offset, &dirent->d_off))
95 dirent = buf->current_dir;
96 if (put_user(d_ino, &dirent->d_ino) ||
97 put_user(reclen, &dirent->d_reclen) ||
98 put_user(namlen, &dirent->d_namlen) ||
99 copy_to_user(dirent->d_name, name, namlen) ||
100 put_user(0, dirent->d_name + namlen))
102 buf->previous = dirent;
103 buf->current_dir = (void __user *)dirent + reclen;
104 buf->count -= reclen;
107 buf->error = -EFAULT;
113 int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned int count)
116 struct hpux_dirent __user * lastdirent;
117 struct getdents_callback buf;
124 buf.current_dir = dirent;
129 error = vfs_readdir(file, filldir, &buf);
132 lastdirent = buf.previous;
134 if (put_user(file->f_pos, &lastdirent->d_off))
137 error = count - buf.count;
145 int hpux_mount(const char *fs, const char *path, int mflag,
146 const char *fstype, const char *dataptr, int datalen)
151 static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 __user *statbuf)
153 struct hpux_stat64 tmp;
155 /* we probably want a different split here - is hpux 12:20? */
157 if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
160 memset(&tmp, 0, sizeof(tmp));
161 tmp.st_dev = new_encode_dev(stat->dev);
162 tmp.st_ino = stat->ino;
163 tmp.st_mode = stat->mode;
164 tmp.st_nlink = stat->nlink;
165 tmp.st_uid = stat->uid;
166 tmp.st_gid = stat->gid;
167 tmp.st_rdev = new_encode_dev(stat->rdev);
168 tmp.st_size = stat->size;
169 tmp.st_atime = stat->atime.tv_sec;
170 tmp.st_mtime = stat->mtime.tv_sec;
171 tmp.st_ctime = stat->ctime.tv_sec;
172 tmp.st_blocks = stat->blocks;
173 tmp.st_blksize = stat->blksize;
174 return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
177 long hpux_stat64(char __user *filename, struct hpux_stat64 __user *statbuf)
180 int error = vfs_stat(filename, &stat);
183 error = cp_hpux_stat(&stat, statbuf);
188 long hpux_fstat64(unsigned int fd, struct hpux_stat64 __user *statbuf)
191 int error = vfs_fstat(fd, &stat);
194 error = cp_hpux_stat(&stat, statbuf);
199 long hpux_lstat64(char __user *filename, struct hpux_stat64 __user *statbuf)
202 int error = vfs_lstat(filename, &stat);
205 error = cp_hpux_stat(&stat, statbuf);