sftp_path_append
abs_dst = sftp_path_append(target, filename);
abs_dst = sftp_path_append(dst, filename);
abs_dst = sftp_path_append(target, filename);
new_dst = sftp_path_append(dst, filename);
new_src = sftp_path_append(src, filename);
new_dst = sftp_path_append(dst, filename);
new_src = sftp_path_append(src, filename);
new_from_path = sftp_path_append(from_path, filename);
new_to_path = sftp_path_append(to_path, filename);
abs_str = sftp_path_append(pwd, p);
char *sftp_path_append(const char *, const char *);
abs_dst = sftp_path_append(dst, filename);
abs_dst = sftp_path_append(dst, filename);
abs_dst = sftp_path_append(tmp_dst, filename);
abs_dst = sftp_path_append(tmp_dst, filename);
tmp = sftp_path_append(path, d[n]->filename);