ftp_func.h

#ifndef __FTP_H__
#define __FTP_H__

#define SAVE_STRCMP(a,b) ((!a && !b) || (a && b && !strcmp(a,b)))

typedef struct S_ftp_reply {
	uint16_t code;
	char *reply;
	char *message;

} ftp_reply_t;

typedef struct S_host_type {
	unsigned int ip;
	char *hostname;
	unsigned short port;
} host_type_t;

enum stype {
	ST_UNIX,
	ST_VMS,
	ST_WINNT,
	ST_MACOS,
	ST_OS400,
	ST_OTHER,
	ST_UNDEFINED
};

enum ftype {
	FT_PLAINFILE,
	FT_DIRECTORY,
	FT_SYMLINK,
	FT_UNKNOWN
};

typedef struct S_file_info file_info_t;
struct S_file_info {
	enum ftype type;	/* file type */
	char *name;		/* file name */
	off_t size;		/* file size */
	time_t tstamp;		/* time-stamp */
	int perms;
	char *linkto;
	file_info_t *prev;	/* ...and next structure. */
	file_info_t *next;	/* ...and next structure. */
};

typedef struct S_folder_list T_folder_list;
struct S_folder_list {
	char *name;
	file_info_t *list;
	T_folder_list *next;
};

typedef struct S_ftp_conn {
	host_type_t *host;
	char *user;
	char *pass;
	int sock;
	int data_sock;
	int serv_sock;

	ftp_reply_t reply;

	char *sbuf;
	int sbuflen;
	proxy_t *ps;

	T_folder_list *folder_list;
	char *current_folder;

	unsigned int local_ip;
	unsigned int bindaddr;

	unsigned char needcwd:1;
	unsigned char loggedin:1;
	unsigned char portmode:1;
	char current_type:2;	/* -1 (undefined), 0 (ascii), 1 binary */
	int secure:2;		/* 1:tls required, 2:tls disabled */
#ifdef HAVE_SSL
	unsigned char datatls:1;
#endif

	enum stype OS;
} ftp_conn_t;

typedef struct S_ftp_session ftp_session_t;
struct S_ftp_session {
	ftp_conn_t *ftp;
	proxy_t *proxy;

	int portmode;
	int bindaddr;
	int chmod;

	char *root;
	char *local_file;
	char *target_folder;
	char *target_file;

	off_t local_fsize;
	off_t target_fsize;

	time_t local_ftime;
	time_t target_ftime;

	short int retry;
	int retry_interval;

	uint8_t done:1;
	char binary:2;

	file_info_t *directory;
	ftp_session_t *next;

};

/* konstruktor */
host_type_t *ftp_new_host(unsigned ip, char *hostname, unsigned short port);
ftp_conn_t *ftp_new(host_type_t * host, int secure, char *user, char *pass);

/* dekonstruktor */
void ftp_free_host(host_type_t * host);
void ftp_quit(ftp_conn_t * self);

/* basic send/recv-api */
int ftp_get_msg(ftp_conn_t * self);
void ftp_issue_cmd(ftp_conn_t * self, char *cmd, char *value);

/* ftp-functions */
int ftp_connect(ftp_conn_t * self, proxy_t * ps);
int ftp_login(ftp_conn_t * self);
#ifdef HAVE_SSL
int ftp_auth_tls(ftp_conn_t * self);
int ftp_set_protection_level(ftp_conn_t * self);
#endif
int ftp_do_syst(ftp_conn_t * self);
int ftp_do_abor(ftp_conn_t * self);
void ftp_do_quit(ftp_conn_t * self);
int ftp_do_cwd(ftp_conn_t * self, char *directory);
int ftp_do_mkd(ftp_conn_t * self, char *directory);
int ftp_do_chmod(ftp_conn_t * self, char *file, char *chmod);

int ftp_get_modification_time(ftp_conn_t * self, char *filename, time_t * timestamp);
int ftp_get_filesize(ftp_conn_t * self, char *filename, off_t * filesize);
int ftp_get_fileinfo(ftp_conn_t * self, char *filename, file_info_t ** info);
int ftp_set_type(ftp_conn_t * self, int type);

int ftp_do_list(ftp_conn_t * self);
int ftp_get_list(ftp_conn_t * self);
int ftp_do_rest(ftp_conn_t * self, off_t filesize);
int ftp_do_stor(ftp_conn_t * self, char *filename /*, off_t filesize */ );
int ftp_do_dele(ftp_conn_t * self, char *filename);
int ftp_do_rmd(ftp_conn_t * self, char *dirname);

int ftp_establish_data_connection(ftp_conn_t * self);
int ftp_complete_data_connection(ftp_conn_t * self);

int ftp_do_passive(ftp_conn_t * self);
int ftp_do_port(ftp_conn_t * self);

T_folder_list *directory_add_dir(char *current_directory, T_folder_list * A, file_info_t * K);

file_info_t *fileinfo_find_file(file_info_t * F, char *name);
file_info_t *ftp_find_directory(ftp_conn_t * self);
void ftp_fileinfo_free(ftp_conn_t * self);

void parse_passive_string(char *msg, unsigned int *ip, unsigned short int *port);

file_info_t *ftp_parse_ls(const char *file, const enum stype system_type);

char *read_whole_line(FILE * fp);

int do_cwd(ftp_session_t * fsession, char *targetdir);
int long_do_cwd(ftp_session_t * fsession);
int try_do_cwd(ftp_conn_t * ftp, char *path, int mkd);

int do_send(ftp_session_t * fsession);

int fsession_process_file(ftp_session_t * fsession);

/* for ftp-ls.c */

void retry_wait(ftp_session_t * fsession);

int parse_url(ftp_session_t * fsession, char *url);

struct wput_timer *wtimer_alloc();

void wtimer_reset(struct wput_timer *wt);

void bar_create(ftp_session_t * fsession);

double wtimer_elapsed(struct wput_timer *wt);

char *calculate_transfer_rate(double time_diff, off_t tbytes, unsigned char sp);

file_info_t *ftp_get_current_folder_list(ftp_conn_t * self);

void bar_update(ftp_session_t * fsession, off_t transfered, int transfered_last, struct wput_timer *last);

int ftp_process_file(ftp_session_t * fs, int opt_delete);

int ftp_session_init(ftp_session_t * fs, char *addr, int port, char *user, char *pass);

int ftp_session_destroy(ftp_session_t * fs);

#endif