static int
fish_linear_start (struct vfs_class *me, struct vfs_s_fh *fh, off_t offset)
{
char *name;
char *quoted_name;
if (offset)
ERRNOR (E_NOTSUPP, 0);
name = vfs_s_fullpath (me, fh->ino);
if (!name)
return 0;
quoted_name = name_quote (name, 0);
g_free (name);
name = quoted_name;
fh->u.fish.append = 0;
offset = fish_command (me, FH_SUPER, WANT_STRING,
"#RETR /%s\n"
"if dd if=/%s of=/dev/null bs=1 count=1 2>/dev/null; then\n"
"ls -ln /%s 2>/dev/null | (\n"
"read p l u g s r\n"
"echo \"$s\"\n"
")\n"
"echo '### 100'\n"
"cat /%s\n"
"echo '### 200'\n"
"else\n"
"echo '### 500'\n"
"fi\n",
name, name, name, name );
g_free (name);
if (offset != PRELIM) ERRNOR (E_REMOTE, 0);
fh->linear = LS_LINEAR_OPEN;
fh->u.fish.got = 0;
#if SIZEOF_OFF_T > SIZEOF_INT
if (sscanf( reply_str, "%llu", &fh->u.fish.total )!=1)
#else
if (sscanf( reply_str, "%u", &fh->u.fish.total )!=1)
#endif
ERRNOR (E_REMOTE, 0);
return 1;
}
/* If the entry is a symlink, find the entry for its target */
static struct vfs_s_entry *
vfs_s_resolve_symlink (struct vfs_class *me, struct vfs_s_entry *entry,
int follow)
{
char *linkname;
char *fullname = NULL;
struct vfs_s_entry *target;
if (follow == LINK_NO_FOLLOW)
return entry;
if (follow == 0)
ERRNOR (ELOOP, NULL);
if (!entry)
ERRNOR (ENOENT, NULL);
if (!S_ISLNK (entry->ino->st.st_mode))
return entry;
linkname = entry->ino->linkname;
if (linkname == NULL)
ERRNOR (EFAULT, NULL);
/* make full path from relative */
if (*linkname != PATH_SEP) {
char *fullpath = vfs_s_fullpath (me, entry->dir);
if (fullpath) {
fullname = g_strconcat (fullpath, "/", linkname, NULL);
linkname = fullname;
g_free (fullpath);
}
}
target =
(MEDATA->find_entry) (me, entry->dir->super->root, linkname,
follow - 1, 0);
g_free (fullname);
return target;
}
gboolean
sftpfs_open_file (vfs_file_handler_t * file_handler, int flags, mode_t mode, GError ** error)
{
unsigned long sftp_open_flags = 0;
int sftp_open_mode = 0;
gboolean do_append = FALSE;
sftpfs_file_handler_data_t *file_handler_data;
sftpfs_super_data_t *super_data;
char *name;
(void) mode;
name = vfs_s_fullpath (&sftpfs_class, file_handler->ino);
if (name == NULL)
return FALSE;
super_data = (sftpfs_super_data_t *) file_handler->ino->super->data;
file_handler_data = g_new0 (sftpfs_file_handler_data_t, 1);
if ((flags & O_CREAT) != 0 || (flags & O_WRONLY) != 0)
{
sftp_open_flags = (flags & O_WRONLY) != 0 ? LIBSSH2_FXF_WRITE : 0;
sftp_open_flags |= (flags & O_CREAT) != 0 ? LIBSSH2_FXF_CREAT : 0;
if ((flags & O_APPEND) != 0)
{
sftp_open_flags |= LIBSSH2_FXF_APPEND;
do_append = TRUE;
}
sftp_open_flags |= (flags & O_TRUNC) != 0 ? LIBSSH2_FXF_TRUNC : 0;
sftp_open_mode = LIBSSH2_SFTP_S_IRUSR |
LIBSSH2_SFTP_S_IWUSR | LIBSSH2_SFTP_S_IRGRP | LIBSSH2_SFTP_S_IROTH;
}
else
sftp_open_flags = LIBSSH2_FXF_READ;
while (TRUE)
{
int libssh_errno;
file_handler_data->handle =
libssh2_sftp_open (super_data->sftp_session, sftpfs_fix_filename (name),
sftp_open_flags, sftp_open_mode);
if (file_handler_data->handle != NULL)
break;
libssh_errno = libssh2_session_last_errno (super_data->session);
if (libssh_errno != LIBSSH2_ERROR_EAGAIN)
{
sftpfs_ssherror_to_gliberror (super_data, libssh_errno, error);
g_free (name);
g_free (file_handler_data);
return FALSE;
}
}
g_free (name);
file_handler_data->flags = flags;
file_handler_data->mode = mode;
file_handler->data = file_handler_data;
if (do_append)
{
struct stat file_info;
if (sftpfs_fstat (file_handler, &file_info, error) == 0)
libssh2_sftp_seek64 (file_handler_data->handle, file_info.st_size);
}
return TRUE;
}
