static Attrib *
get_decode_stat(int fd, u_int expected_id, int quiet)
{
Buffer msg;
u_int type, id;
Attrib *a;
buffer_init(&msg);
get_msg(fd, &msg);
type = buffer_get_char(&msg);
id = buffer_get_int(&msg);
debug3("Received stat reply T:%u I:%u", type, id);
if (id != expected_id)
fatal("ID mismatch (%u != %u)", id, expected_id);
if (type == SSH2_FXP_STATUS) {
int status = buffer_get_int(&msg);
if (quiet)
debug("Couldn't stat remote file: %s", fx2txt(status));
else
error("Couldn't stat remote file: %s", fx2txt(status));
buffer_free(&msg);
return(NULL);
} else if (type != SSH2_FXP_ATTRS) {
fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u",
SSH2_FXP_ATTRS, type);
}
a = decode_attrib(&msg);
buffer_free(&msg);
return(a);
}
static void
process_fsetstat(u_int32_t id)
{
Attrib a;
int handle, fd, r;
int status = SSH2_FX_OK;
if ((r = get_handle(iqueue, &handle)) != 0 ||
(r = decode_attrib(iqueue, &a)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug("request %u: fsetstat handle %d", id, handle);
fd = handle_to_fd(handle);
if (fd < 0)
status = SSH2_FX_FAILURE;
else {
char *name = handle_to_name(handle);
if (a.flags & SSH2_FILEXFER_ATTR_SIZE) {
logit("set \"%s\" size %llu",
name, (unsigned long long)a.size);
r = ftruncate(fd, a.size);
if (r == -1)
status = errno_to_portable(errno);
}
if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) {
logit("set \"%s\" mode %04o", name, a.perm);
r = fchmod(fd, a.perm & 07777);
if (r == -1)
status = errno_to_portable(errno);
}
if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
char buf[64];
time_t t = a.mtime;
strftime(buf, sizeof(buf), "%Y%m%d-%H:%M:%S",
localtime(&t));
logit("set \"%s\" modtime %s", name, buf);
r = futimes(fd, attrib_to_tv(&a));
if (r == -1)
status = errno_to_portable(errno);
}
if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
logit("set \"%s\" owner %lu group %lu", name,
(u_long)a.uid, (u_long)a.gid);
r = fchown(fd, a.uid, a.gid);
if (r == -1)
status = errno_to_portable(errno);
}
}
send_status(id, status);
}
char *
do_realpath(struct sftp_conn *conn, char *path)
{
Buffer msg;
u_int type, expected_id, count, id;
char *filename, *longname;
/* LINTED */
Attrib *a;
expected_id = id = conn->msg_id++;
send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path,
strlen(path));
buffer_init(&msg);
get_msg(conn->fd_in, &msg);
type = buffer_get_char(&msg);
id = buffer_get_int(&msg);
if (id != expected_id)
fatal("ID mismatch (%u != %u)", id, expected_id);
if (type == SSH2_FXP_STATUS) {
u_int status = buffer_get_int(&msg);
error("Couldn't canonicalise: %s", fx2txt(status));
return(NULL);
} else if (type != SSH2_FXP_NAME)
fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
SSH2_FXP_NAME, type);
count = buffer_get_int(&msg);
if (count != 1)
fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count);
filename = buffer_get_string(&msg, NULL);
longname = buffer_get_string(&msg, NULL);
a = decode_attrib(&msg);
debug3("SSH_FXP_REALPATH %s -> %s", path, filename);
xfree(longname);
buffer_free(&msg);
return(filename);
}
static void
process_setstat(u_int32_t id)
{
Attrib a;
char *name;
int r, status = SSH2_FX_OK;
if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = decode_attrib(iqueue, &a)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug("request %u: setstat name \"%s\"", id, name);
if (a.flags & SSH2_FILEXFER_ATTR_SIZE) {
logit("set \"%s\" size %llu",
name, (unsigned long long)a.size);
r = truncate(name, a.size);
if (r == -1)
status = errno_to_portable(errno);
}
if (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) {
logit("set \"%s\" mode %04o", name, a.perm);
r = chmod(name, a.perm & 07777);
if (r == -1)
status = errno_to_portable(errno);
}
if (a.flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
char buf[64];
time_t t = a.mtime;
strftime(buf, sizeof(buf), "%Y%m%d-%H:%M:%S",
localtime(&t));
logit("set \"%s\" modtime %s", name, buf);
r = utimes(name, attrib_to_tv(&a));
if (r == -1)
status = errno_to_portable(errno);
}
if (a.flags & SSH2_FILEXFER_ATTR_UIDGID) {
logit("set \"%s\" owner %lu group %lu", name,
(u_long)a.uid, (u_long)a.gid);
r = chown(name, a.uid, a.gid);
if (r == -1)
status = errno_to_portable(errno);
}
send_status(id, status);
free(name);
}
static void
process_mkdir(u_int32_t id)
{
Attrib a;
char *name;
int r, mode, status = SSH2_FX_FAILURE;
if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = decode_attrib(iqueue, &a)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
mode = (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ?
a.perm & 07777 : 0777;
debug3("request %u: mkdir", id);
logit("mkdir name \"%s\" mode 0%o", name, mode);
r = mkdir(name, mode);
status = (r == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
free(name);
}
static void
process_open(u_int32_t id)
{
u_int32_t pflags;
Attrib a;
char *name;
int r, handle, fd, flags, mode, status = SSH2_FX_FAILURE;
if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 ||
(r = sshbuf_get_u32(iqueue, &pflags)) != 0 || /* portable flags */
(r = decode_attrib(iqueue, &a)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: open flags %d", id, pflags);
flags = flags_from_portable(pflags);
mode = (a.flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a.perm : 0666;
logit("open \"%s\" flags %s mode 0%o",
name, string_from_portable(pflags), mode);
if (readonly &&
((flags & O_ACCMODE) == O_WRONLY ||
(flags & O_ACCMODE) == O_RDWR)) {
verbose("Refusing open request in read-only mode");
status = SSH2_FX_PERMISSION_DENIED;
} else {
fd = open(name, flags, mode);
if (fd < 0) {
status = errno_to_portable(errno);
} else {
handle = handle_new(HANDLE_FILE, name, fd, flags, NULL);
if (handle < 0) {
close(fd);
} else {
send_handle(id, handle);
status = SSH2_FX_OK;
}
}
}
if (status != SSH2_FX_OK)
send_status(id, status);
free(name);
}
static Attrib *
get_attrib(void)
{
return decode_attrib(&iqueue);
}
static Attrib
get_attrib(Buffer& buf)
{
return decode_attrib(&buf);
}
static int
do_lsreaddir(struct sftp_conn *conn, char *path, int printflag,
SFTP_DIRENT ***dir)
{
Buffer msg;
u_int count, type, id, handle_len, i, expected_id, ents = 0;
char *handle;
id = conn->msg_id++;
buffer_init(&msg);
buffer_put_char(&msg, SSH2_FXP_OPENDIR);
buffer_put_int(&msg, id);
buffer_put_cstring(&msg, path);
send_msg(conn->fd_out, &msg);
buffer_clear(&msg);
handle = get_handle(conn->fd_in, id, &handle_len);
if (handle == NULL)
return(-1);
if (dir) {
ents = 0;
*dir = xmalloc(sizeof(**dir));
(*dir)[0] = NULL;
}
for (; !interrupted;) {
id = expected_id = conn->msg_id++;
debug3("Sending SSH2_FXP_READDIR I:%u", id);
buffer_clear(&msg);
buffer_put_char(&msg, SSH2_FXP_READDIR);
buffer_put_int(&msg, id);
buffer_put_string(&msg, handle, handle_len);
send_msg(conn->fd_out, &msg);
buffer_clear(&msg);
get_msg(conn->fd_in, &msg);
type = buffer_get_char(&msg);
id = buffer_get_int(&msg);
debug3("Received reply T:%u I:%u", type, id);
if (id != expected_id)
fatal("ID mismatch (%u != %u)", id, expected_id);
if (type == SSH2_FXP_STATUS) {
int status = buffer_get_int(&msg);
debug3("Received SSH2_FXP_STATUS %d", status);
if (status == SSH2_FX_EOF) {
break;
} else {
error("Couldn't read directory: %s",
fx2txt(status));
do_close(conn, handle, handle_len);
xfree(handle);
return(status);
}
} else if (type != SSH2_FXP_NAME)
fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
SSH2_FXP_NAME, type);
count = buffer_get_int(&msg);
if (count == 0)
break;
debug3("Received %d SSH2_FXP_NAME responses", count);
for (i = 0; i < count; i++) {
char *filename, *longname;
Attrib *a;
filename = buffer_get_string(&msg, NULL);
longname = buffer_get_string(&msg, NULL);
a = decode_attrib(&msg);
if (printflag)
printf("%s\n", longname);
if (dir) {
*dir = xrealloc(*dir, (ents + 2) * sizeof(**dir));
(*dir)[ents] = xmalloc(sizeof(***dir));
(*dir)[ents]->filename = xstrdup(filename);
(*dir)[ents]->longname = xstrdup(longname);
memcpy(&(*dir)[ents]->a, a, sizeof(*a));
(*dir)[++ents] = NULL;
}
xfree(filename);
xfree(longname);
}
}
buffer_free(&msg);
do_close(conn, handle, handle_len);
xfree(handle);
/* Don't return partial matches on interrupt */
if (interrupted && dir != NULL && *dir != NULL) {
free_sftp_dirents(*dir);
*dir = xmalloc(sizeof(**dir));
**dir = NULL;
}
return(0);
}
