static void
process_mkdir(u_int32_t id)
{
Attrib *a;
char *name;
int ret, mode, status = SSH2_FX_FAILURE;
name = get_string(NULL);
a = get_attrib();
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);
ret = mkdir(name, mode);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
free(name);
}
static void
process_symlink(void)
{
u_int32_t id;
char *oldpath, *newpath;
int ret, status;
id = get_int();
oldpath = get_string(NULL);
newpath = get_string(NULL);
TRACE("symlink id %u old %s new %s", id, oldpath, newpath);
/* this will fail if 'newpath' exists */
ret = symlink(oldpath, newpath);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
xfree(oldpath);
xfree(newpath);
}
static void
process_extended_statvfs(u_int32_t id)
{
char *path;
struct statvfs st;
int r;
if ((r = sshbuf_get_cstring(iqueue, &path, NULL)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: statvfs", id);
logit("statvfs \"%s\"", path);
if (statvfs(path, &st) != 0)
send_status(id, errno_to_portable(errno));
else
send_statvfs(id, &st);
free(path);
}
static void
process_extended_fstatvfs(u_int32_t id)
{
int handle, fd;
struct statvfs st;
handle = get_handle();
debug("request %u: fstatvfs \"%s\" (handle %u)",
id, handle_to_name(handle), handle);
if ((fd = handle_to_fd(handle)) < 0) {
send_status(id, SSH2_FX_FAILURE);
return;
}
if (fstatvfs(fd, &st) != 0)
send_status(id, errno_to_portable(errno));
else
send_statvfs(id, &st);
}
static void
process_extended_posix_rename(u_int32_t id)
{
char *oldpath, *newpath;
int r, status;
if ((r = sshbuf_get_cstring(iqueue, &oldpath, NULL)) != 0 ||
(r = sshbuf_get_cstring(iqueue, &newpath, NULL)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: posix-rename", id);
logit("posix-rename old \"%s\" new \"%s\"", oldpath, newpath);
r = rename(oldpath, newpath);
status = (r == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
free(oldpath);
free(newpath);
}
static void
process_symlink(u_int32_t id)
{
char *oldpath, *newpath;
int r, status;
if ((r = sshbuf_get_cstring(iqueue, &oldpath, NULL)) != 0 ||
(r = sshbuf_get_cstring(iqueue, &newpath, NULL)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: symlink", id);
logit("symlink old \"%s\" new \"%s\"", oldpath, newpath);
/* this will fail if 'newpath' exists */
r = symlink(oldpath, newpath);
status = (r == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
free(oldpath);
free(newpath);
}
static void
process_mkdir(void)
{
Attrib *a;
u_int32_t id;
char *name;
int ret, mode, status = SSH2_FX_FAILURE;
id = get_int();
name = get_string(NULL);
a = get_attrib();
mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ?
a->perm & 0777 : 0777;
TRACE("mkdir id %u name %s mode 0%o", id, name, mode);
ret = mkdir(name, mode);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
xfree(name);
}
void SFTP::process_remove(void)
{
char *utf8_name;
u_int32_t id;
int status = SSH2_FX_FAILURE;
id = get_int();
utf8_name = (char*) get_string(NULL);
debug3("request %u: remove", (unsigned) id);
logit("remove name \"%s\"", utf8_name);
const SFTPFilePath path = pathFact.create_path (utf8_name);
BOOL res = ::DeleteFileW (path.get_for_call ().c_str ());
status = (!res)
? errno_to_portable(::GetLastError ())
: SSH2_FX_OK;
send_status(id, status);
xfree(utf8_name);
}
static void
process_extended_fstatvfs(u_int32_t id)
{
int r, handle, fd;
struct statvfs st;
if ((r = get_handle(iqueue, &handle)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug("request %u: fstatvfs \"%s\" (handle %u)",
id, handle_to_name(handle), handle);
if ((fd = handle_to_fd(handle)) < 0) {
send_status(id, SSH2_FX_FAILURE);
return;
}
if (fstatvfs(fd, &st) != 0)
send_status(id, errno_to_portable(errno));
else
send_statvfs(id, &st);
}
static void
process_rmdir(void)
{
u_int32_t id;
char *name;
int ret, status;
id = get_int();
name = get_string(NULL);
debug3("request %u: rmdir", id);
logit("rmdir name \"%s\"", name);
if (readonly)
status = SSH2_FX_PERMISSION_DENIED;
else {
ret = rmdir(name);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
}
send_status(id, status);
xfree(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_extended_posix_rename(u_int32_t id)
{
char *oldpath, *newpath;
int ret, status;
oldpath = get_string(NULL);
newpath = get_string(NULL);
debug3("request %u: posix-rename", id);
logit("posix-rename old \"%s\" new \"%s\"", oldpath, newpath);
if (readonly)
status = SSH2_FX_PERMISSION_DENIED;
else {
ret = rename(oldpath, newpath);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
}
send_status(id, status);
xfree(oldpath);
xfree(newpath);
}
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 void
process_symlink(void)
{
u_int32_t id;
struct stat st;
char *oldpath, *newpath;
int ret, status = SSH2_FX_FAILURE;
id = get_int();
oldpath = get_string(NULL);
newpath = get_string(NULL);
TRACE("symlink id %u old %s new %s", id, oldpath, newpath);
/* fail if 'newpath' exists */
if (stat(newpath, &st) == -1) {
ret = symlink(oldpath, newpath);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
}
send_status(id, status);
xfree(oldpath);
xfree(newpath);
}
static void
process_remove(void)
{
char *name;
u_int32_t id;
int status = SSH2_FX_FAILURE;
int ret;
id = get_int();
name = get_string(NULL);
debug3("request %u: remove", id);
logit("remove name \"%s\"", name);
if (readonly)
status = SSH2_FX_PERMISSION_DENIED;
else {
ret = unlink(name);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
}
send_status(id, status);
xfree(name);
}
static void
process_rmdir(u_int32_t id)
{
char *name;
int ret, status;
name = get_string(NULL);
debug3("request %u: rmdir", id);
logit("rmdir name \"%s\"", name);
ret = rmdir(name);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
send_status(id, status);
#ifdef NERSC_MOD
char* t1buf = encode_string(name, strlen(name));
s_audit("sftp_process_rmdir_3", "count=%i int=%d uristring=%s",
get_client_session_id(), (int)getppid(), t1buf);
free(t1buf);
#endif
free(name);
}
static void
process_open(u_int32_t id)
{
u_int32_t pflags;
Attrib *a;
char *name;
int handle, fd, flags, mode, status = SSH2_FX_FAILURE;
name = get_string(NULL);
pflags = get_int(); /* portable flags */
debug3("request %u: open flags %d", id, pflags);
a = get_attrib();
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);
}
void SFTP::process_symlink(void)
{
u_int32_t id;
char *utf8_oldpath, *utf8_newpath;
id = get_int();
utf8_oldpath = (char*) get_string(NULL);
utf8_newpath = (char*) get_string(NULL);
debug3("request %u: symlink", (unsigned) id);
logit("symlink old \"%s\" new \"%s\"",
utf8_oldpath, utf8_newpath);
// TODO can be added on Vista+
#if 0
/* this will fail if 'newpath' exists */
ret = symlink(oldpath, newpath);
status = (ret == -1) ? errno_to_portable(::GetLastError ()) : SSH2_FX_OK;
#endif
const u_int32_t status = SSH2_FX_OP_UNSUPPORTED;
send_status(id, status);
xfree(utf8_oldpath);
xfree(utf8_newpath);
}
static void
process_readlink(u_int32_t id)
{
int len;
char buf[MAXPATHLEN];
char *path;
path = get_string(NULL);
debug3("request %u: readlink", id);
verbose("readlink \"%s\"", path);
if ((len = readlink(path, buf, sizeof(buf) - 1)) == -1)
send_status(id, errno_to_portable(errno));
else {
Stat s;
buf[len] = '\0';
attrib_clear(&s.attrib);
s.name = s.long_name = buf;
send_names(id, 1, &s);
}
free(path);
}
static void
process_do_stat(u_int32_t id, int do_lstat)
{
Attrib a;
struct stat st;
char *name;
int ret, status = SSH2_FX_FAILURE;
name = get_string(NULL);
debug3("request %u: %sstat", id, do_lstat ? "l" : "");
verbose("%sstat name \"%s\"", do_lstat ? "l" : "", name);
ret = do_lstat ? lstat(name, &st) : stat(name, &st);
if (ret < 0) {
status = errno_to_portable(errno);
} else {
stat_to_attrib(&st, &a);
send_attrib(id, &a);
status = SSH2_FX_OK;
}
if (status != SSH2_FX_OK)
send_status(id, status);
free(name);
}
static void
process_readlink(void)
{
u_int32_t id;
int len;
char link[MAXPATHLEN];
char *path;
id = get_int();
path = get_string(NULL);
TRACE("readlink id %u path %s", id, path);
if ((len = readlink(path, link, sizeof(link) - 1)) == -1)
send_status(id, errno_to_portable(errno));
else {
Stat s;
link[len] = '\0';
attrib_clear(&s.attrib);
s.name = s.long_name = link;
send_names(id, 1, &s);
}
xfree(path);
}
static void
process_symlink(void)
{
u_int32_t id;
char *oldpath, *newpath;
int ret, status;
id = get_int();
oldpath = get_string(NULL);
newpath = get_string(NULL);
debug3("request %u: symlink", id);
logit("symlink old \"%s\" new \"%s\"", oldpath, newpath);
/* this will fail if 'newpath' exists */
if (readonly)
status = SSH2_FX_PERMISSION_DENIED;
else {
ret = symlink(oldpath, newpath);
status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK;
}
send_status(id, status);
xfree(oldpath);
xfree(newpath);
}
static void
process_realpath(u_int32_t id)
{
char resolvedname[MAXPATHLEN];
char *path;
path = get_string(NULL);
if (path[0] == '\0') {
free(path);
path = xstrdup(".");
}
debug3("request %u: realpath", id);
verbose("realpath \"%s\"", path);
if (realpath(path, resolvedname) == NULL) {
send_status(id, errno_to_portable(errno));
} else {
Stat s;
attrib_clear(&s.attrib);
s.name = s.long_name = resolvedname;
send_names(id, 1, &s);
}
free(path);
}
static void
process_do_stat(int do_lstat)
{
Attrib a;
struct stat st;
u_int32_t id;
char *name;
int ret, status = SSH2_FX_FAILURE;
id = get_int();
name = get_string(NULL);
TRACE("%sstat id %u name %s", do_lstat ? "l" : "", id, name);
ret = do_lstat ? lstat(name, &st) : stat(name, &st);
if (ret < 0) {
status = errno_to_portable(errno);
} else {
stat_to_attrib(&st, &a);
send_attrib(id, &a);
status = SSH2_FX_OK;
}
if (status != SSH2_FX_OK)
send_status(id, status);
xfree(name);
}
static void
process_realpath(void)
{
char resolvedname[MAXPATHLEN];
u_int32_t id;
char *path;
id = get_int();
path = get_string(NULL);
if (path[0] == '\0') {
xfree(path);
path = xstrdup(".");
}
TRACE("realpath id %u path %s", id, path);
if (realpath(path, resolvedname) == NULL) {
send_status(id, errno_to_portable(errno));
} else {
Stat s;
attrib_clear(&s.attrib);
s.name = s.long_name = resolvedname;
send_names(id, 1, &s);
}
xfree(path);
}
static void
process_fstat(u_int32_t id)
{
Attrib a;
struct stat st;
int fd, ret, handle, status = SSH2_FX_FAILURE;
handle = get_handle();
debug("request %u: fstat \"%s\" (handle %u)",
id, handle_to_name(handle), handle);
fd = handle_to_fd(handle);
if (fd >= 0) {
ret = fstat(fd, &st);
if (ret < 0) {
status = errno_to_portable(errno);
} else {
stat_to_attrib(&st, &a);
send_attrib(id, &a);
status = SSH2_FX_OK;
}
}
if (status != SSH2_FX_OK)
send_status(id, status);
}
static void
process_readlink(u_int32_t id)
{
int r, len;
char buf[PATH_MAX];
char *path;
if ((r = sshbuf_get_cstring(iqueue, &path, NULL)) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
debug3("request %u: readlink", id);
verbose("readlink \"%s\"", path);
if ((len = readlink(path, buf, sizeof(buf) - 1)) == -1)
send_status(id, errno_to_portable(errno));
else {
Stat s;
buf[len] = '\0';
attrib_clear(&s.attrib);
s.name = s.long_name = buf;
send_names(id, 1, &s);
}
free(path);
}
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);
#ifdef HAVE_FCHMOD
r = fchmod(fd, a.perm & 07777);
#else
r = chmod(name, a.perm & 07777);
#endif
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);
#ifdef HAVE_FUTIMES
r = futimes(fd, attrib_to_tv(&a));
#else
r = utimes(name, attrib_to_tv(&a));
#endif
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);
#ifdef HAVE_FCHOWN
r = fchown(fd, a.uid, a.gid);
#else
r = chown(name, a.uid, a.gid);
#endif
if (r == -1)
status = errno_to_portable(errno);
}
}
send_status(id, status);
}
static void
process_rename(void)
{
u_int32_t id;
char *oldpath, *newpath;
int status;
struct stat sb;
id = get_int();
oldpath = get_string(NULL);
newpath = get_string(NULL);
debug3("request %u: rename", id);
logit("rename old \"%s\" new \"%s\"", oldpath, newpath);
status = SSH2_FX_FAILURE;
if (readonly)
status = SSH2_FX_PERMISSION_DENIED;
else if (lstat(oldpath, &sb) == -1)
status = errno_to_portable(errno);
else if (S_ISREG(sb.st_mode)) {
/* Race-free rename of regular files */
if (link(oldpath, newpath) == -1) {
if (errno == EOPNOTSUPP || errno == ENOSYS
#ifdef EXDEV
|| errno == EXDEV
#endif
#ifdef LINK_OPNOTSUPP_ERRNO
|| errno == LINK_OPNOTSUPP_ERRNO
#endif
) {
struct stat st;
/*
* fs doesn't support links, so fall back to
* stat+rename. This is racy.
*/
if (stat(newpath, &st) == -1) {
if (rename(oldpath, newpath) == -1)
status =
errno_to_portable(errno);
else
status = SSH2_FX_OK;
}
} else {
status = errno_to_portable(errno);
}
} else if (unlink(oldpath) == -1) {
status = errno_to_portable(errno);
/* clean spare link */
unlink(newpath);
} else
status = SSH2_FX_OK;
} else if (stat(newpath, &sb) == -1) {
if (rename(oldpath, newpath) == -1)
status = errno_to_portable(errno);
else
status = SSH2_FX_OK;
}
send_status(id, status);
xfree(oldpath);
xfree(newpath);
}
static void
process_fsetstat(u_int32_t id)
{
Attrib *a;
int handle, fd, ret;
int status = SSH2_FX_OK;
handle = get_handle();
a = get_attrib();
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);
ret = ftruncate(fd, a->size);
if (ret == -1)
status = errno_to_portable(errno);
}
if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) {
logit("set \"%s\" mode %04o", name, a->perm);
#ifdef HAVE_FCHMOD
ret = fchmod(fd, a->perm & 07777);
#else
ret = chmod(name, a->perm & 07777);
#endif
if (ret == -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);
#ifdef HAVE_FUTIMES
ret = futimes(fd, attrib_to_tv(a));
#else
ret = utimes(name, attrib_to_tv(a));
#endif
if (ret == -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);
#ifdef HAVE_FCHOWN
ret = fchown(fd, a->uid, a->gid);
#else
ret = chown(name, a->uid, a->gid);
#endif
if (ret == -1)
status = errno_to_portable(errno);
}
}
send_status(id, status);
}
