SFTP_ERR_SERVER_DISABLED = -100
SFTP_ERR_CONFIG_OFF = -101
SFTP_ERR_CONNECT_TO_SERVER = -102
SFTP_ERR_USER_NO_LOGGIN = -103
SFTP_ERR_CHDIR = -104
SFTP_ERR_MKDIR = -105
SFTP_ERR_SOURCE_READ = -106
SFTP_ERR_TARGET_WRITE = -107