/*
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Funtion :fstat64
Input :int fd
< open file descriptor >
struct stat64_i386 *buf
< stat structure >
Output :struct stat64_i386 *buf
< stat structure >
Return :int
< result >
Description :get file status
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*/
SYSCALL int fstat64(int fd, struct stat64_i386 *buf)
{
struct file *filp;
struct vnode *vnode;
int err;
//printf("fstat64:fd=%d\n", fd);
err = vm_check_access((void*)buf, sizeof(struct stat64_i386), PROT_WRITE);
if (UNLIKELY(err)) {
return(-EFAULT);
}
if (UNLIKELY(get_soft_limit(RLIMIT_NOFILE) < fd)) {
return(-EBADF);
}
filp = get_open_file(fd);
if (UNLIKELY(!filp)) {
return(-EBADF);
}
vnode = filp->f_vnode;
return(vfs_stat64(vnode, buf));
}
/*
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Funtion :lstat64
Input :const char *path
< file path to get its status >
struct stat64_i386 *buf
< stat structure >
Output :struct stat64_i386 *buf
< stat structure >
Return :int
< result >
Description :get file status
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*/
SYSCALL int lstat64(const char *path, struct stat64_i386 *buf)
{
struct file_name *fname;
struct vnode *vnode;
int err;
//printf("lstat64:path[%s] ", path);
if (UNLIKELY(!path)) {
return(-EFAULT);
}
err = vm_check_access((void*)buf, sizeof(struct stat64_i386), PROT_WRITE);
if (UNLIKELY(err)) {
return(-EFAULT);
}
err = vfs_lookup(path, &fname, LOOKUP_ENTRY);
if (err) {
//printf("err:%d\n", -err);
return(err);
}
vnode = fname->dentry->d_vnode;
put_file_name(fname);
err = vfs_stat64(vnode, buf);
return(err);
}
asmlinkage long
sys32_stat64(char __user * filename, struct stat64 __user *statbuf)
{
struct kstat64 stat;
int ret = vfs_stat64(filename, &stat);
if (!ret)
ret = cp_stat64(statbuf, &stat);
return ret;
}