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- #define CTLZ 26 /* EOF for CP/M systems */
-
- extern char *userfile; /* List of user names and permissions */
-
- #define MAXPATH 8 /* Maximum number of path/permission pairs */
-
- /* Per-session control block */
- struct ftp {
- struct ftp *prev; /* Linked list pointers */
- struct ftp *next;
- struct tcb *control; /* TCP control connection */
- char state;
- #define COMMAND_STATE 0 /* Awaiting user command */
- #define SENDING_STATE 1 /* Sending data to user */
- #define RECEIVING_STATE 2 /* Storing data from user */
- #define STARTUP_STATE 3 /* Starting up autologin */
- #define USER_STATE 4 /* Waiting for the user name */
- #define PASS_STATE 5 /* Waiting for the password */
-
- char type; /* Transfer type */
- #define IMAGE_TYPE 0
- #define ASCII_TYPE 1
-
- FILE *fp; /* File descriptor being transferred */
- struct socket port; /* Remote port for data connection */
- struct tcb *data; /* Data connection */
-
- /* The following are used only by the server */
- char *username; /* Arg to USER command */
- char *path[MAXPATH]; /* Allowable path prefix */
- char perms[MAXPATH]; /* Permission flag bits */
- #define FTP_READ 1 /* Read files */
- #define FTP_CREATE 2 /* Create new files */
- #define FTP_WRITE 4 /* Overwrite or delete existing files */
-
- char *buf; /* Input command buffer */
- char cnt; /* Length of input buffer */
- char *cd; /* Current directory name */
-
- /* And this is used only by the client */
- struct session *session;
- };
-
- #define NULLFTP (struct ftp *)0
-
-