static int verify_path_many(const char *path, const char *roots[])
{
int i;
char *t;
int ret = 0;
if (obex_option_symlinks())
return 0;
t = realpath(path, NULL);
if (t == NULL)
return -errno;
ret = -EPERM;
for (i = 0; roots[i]; i++) {
if (g_str_has_prefix(t, roots[i])) {
ret = 0;
break;
}
}
free(t);
return ret;
}
int verify_path(const char *path)
{
char *t;
int ret = 0;
if (obex_option_symlinks())
return 0;
t = realpath(path, NULL);
if (t == NULL)
return -errno;
if (!g_str_has_prefix(t, obex_option_root_folder()))
ret = -EPERM;
free(t);
return ret;
}
static GString *append_listing(GString *object, const char *name,
gboolean pcsuite, size_t *size, int *err)
{
struct stat fstat, dstat;
struct dirent *ep;
DIR *dp;
gboolean root, symlinks;
int ret;
root = g_str_equal(name, obex_option_root_folder());
dp = opendir(name);
if (dp == NULL) {
if (err)
*err = -ENOENT;
goto failed;
}
symlinks = obex_option_symlinks();
if (root && symlinks)
ret = stat(name, &dstat);
else {
object = g_string_append(object, FL_PARENT_FOLDER_ELEMENT);
ret = lstat(name, &dstat);
}
if (ret < 0) {
if (err)
*err = -errno;
goto failed;
}
while ((ep = readdir(dp))) {
char *filename;
char *fullname;
char *line;
if (ep->d_name[0] == '.')
continue;
filename = g_filename_to_utf8(ep->d_name, -1, NULL, NULL, NULL);
if (name == NULL) {
error("g_filename_to_utf8: invalid filename");
continue;
}
fullname = g_build_filename(name, ep->d_name, NULL);
if (root && symlinks)
ret = stat(fullname, &fstat);
else
ret = lstat(fullname, &fstat);
if (ret < 0) {
DBG("%s: %s(%d)", root ? "stat" : "lstat",
strerror(errno), errno);
g_free(filename);
g_free(fullname);
continue;
}
g_free(fullname);
line = file_stat_line(filename, &fstat, &dstat, root, FALSE);
if (line == NULL) {
g_free(filename);
continue;
}
g_free(filename);
object = g_string_append(object, line);
g_free(line);
}
closedir(dp);
object = g_string_append(object, FL_BODY_END);
if (size)
*size = object->len;
if (err)
*err = 0;
return object;
failed:
if (dp)
closedir(dp);
g_string_free(object, TRUE);
return NULL;
}
static void *filesystem_open(const char *name, int oflag, mode_t mode,
void *context, size_t *size, int *err)
{
struct stat stats;
struct statvfs buf;
const char *root_folder;
char *folder;
gboolean root;
int fd = open(name, oflag, mode);
uint64_t avail;
if (fd < 0) {
if (err)
*err = -errno;
return NULL;
}
if (fstat(fd, &stats) < 0) {
if (err)
*err = -errno;
goto failed;
}
root_folder = obex_option_root_folder();
folder = g_path_get_dirname(name);
root = g_strcmp0(folder, root_folder);
g_free(folder);
if (!root || obex_option_symlinks()) {
if (S_ISLNK(stats.st_mode)) {
if (err)
*err = -EPERM;
goto failed;
}
}
if (oflag == O_RDONLY) {
if (size)
*size = stats.st_size;
goto done;
}
if (fstatvfs(fd, &buf) < 0) {
if (err)
*err = -errno;
goto failed;
}
if (size == NULL)
goto done;
avail = (uint64_t) buf.f_bsize * buf.f_bavail;
if (avail < *size) {
if (err)
*err = -ENOSPC;
goto failed;
}
done:
if (err)
*err = 0;
return GINT_TO_POINTER(fd);
failed:
close(fd);
return NULL;
}
