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/*
* For license terms, see the file COPYING in this directory.
*/
/* constants designating the various supported protocols */
#define P_AUTO 0
#define P_POP2 2
#define P_POP3 3
#define P_IMAP 4
#define P_IMAP_K4 5
#define P_APOP 6
#define P_RPOP 7
#define P_ETRN 8
#define KPOP_PORT 1109
/* preauthentication types */
#define A_PASSWORD 0 /* password or inline authentication */
#define A_KERBEROS_V4 1 /* preauthenticate w/ Kerberos V4 */
/* definitions for buffer sizes -- somewhat arbitrary */
#define POPBUFSIZE 512 /* per RFC 937 */
#define MSGBUFSIZE 2048 /* size of message read buffer */
#define HOSTLEN 128 /* max hostname length */
#define USERNAMELEN 32 /* max user-name length */
#define PASSWORDLEN 64 /* max password length */
#define DIGESTLEN 33 /* length of MD5 digest */
#define IDLEN 128 /* length of UIDL message ID */
/* exit code values */
#define PS_SUCCESS 0 /* successful receipt of messages */
#define PS_NOMAIL 1 /* no mail available */
#define PS_SOCKET 2 /* socket I/O woes */
#define PS_AUTHFAIL 3 /* user authorization failed */
#define PS_PROTOCOL 4 /* protocol violation */
#define PS_SYNTAX 5 /* command-line syntax error */
#define PS_IOERR 6 /* bad permissions on rc file */
#define PS_ERROR 7 /* protocol error */
#define PS_EXCLUDE 8 /* exclusion error */
#define PS_SMTP 9 /* SMTP error */
#define PS_UNDEFINED 10 /* something I hadn't thought of */
#define PS_TRANSIENT 11 /* transient failure (internal use) */
#define PS_REFUSED 12 /* mail refused (internal use) */
/* output noise level */
#define O_SILENT 0 /* mute, max squelch, etc. */
#define O_NORMAL 1 /* user-friendly */
#define O_VERBOSE 2 /* excessive */
#define SIZETICKER 1024 /* print 1 dot per this many bytes */
/* we need to use zero as a flag-uninitialized value */
#define FLAG_TRUE 2
#define FLAG_FALSE 1
struct idlist
{
char *id;
union
{
int num;
char *id2;
} val;
struct idlist *next;
};
typedef int bool;
struct hostdata /* shared among all user connections to given server */
{
/* rc file data */
struct idlist *names; /* server name first, then akas */
struct idlist *localdomains; /* list of pass-through domains */
int protocol; /* protocol type */
int port; /* TCP/IP service port number */
int interval; /* # cycles to skip between polls */
int preauthenticate; /* preauthentication mode to try */
int timeout; /* inactivity timout in seconds */
char *envelope; /* envelope address list header */
bool skip; /* suppress poll in implicit mode? */
bool dns; /* do DNS lookup on multidrop? */
bool uidl; /* use RFC1725 UIDLs? */
#ifdef linux
char *interface;
char *monitor;
int monitor_io;
struct interface_pair_s *interface_pair;
#endif /* linux */
/* computed for internal use */
int poll_count; /* count of polls so far */
#ifdef HAVE_GETHOSTBYNAME
char *canonical_name; /* DNS canonical name of server host */
#endif /* HAVE_GETHOSTBYNAME */
struct hostdata *lead_server; /* ptr to lead query for this server */
int esmtp_options;
};
struct query
{
/* mailserver connection controls */
struct hostdata server;
/* per-user data */
struct idlist *localnames; /* including calling user's name */
int wildcard; /* should unmatched names be passed through */
char *remotename; /* remote login name to use */
char *password; /* remote password to use */
struct idlist *mailboxes; /* list of mailboxes to check */
struct idlist *smtphunt; /* list of SMTP hosts to try forwarding to */
char *smtphost; /* actual SMTP host to point to */
char *mda; /* local MDA to pass mail to */
char *preconnect; /* pre-connection command to execute */
/* per-user control flags */
bool keep; /* if TRUE, leave messages undeleted */
bool fetchall; /* if TRUE, fetch all (not just unseen) */
bool flush; /* if TRUE, delete messages already seen */
bool rewrite; /* if TRUE, canonicalize recipient addresses */
bool stripcr; /* if TRUE, strip CRs in text */
bool forcecr; /* if TRUE, force CRs before LFs in text */
int limit; /* limit size of retrieved messages */
int fetchlimit; /* max # msgs to get in single poll */
int batchlimit; /* max # msgs to pass in single SMTP session */
/* unseen, previous state of mailbox (initially from .fetchids) */
struct idlist *oldsaved, *newsaved;
/* internal use */
bool active; /* should we actually poll this server? */
int errcount; /* count transient errors in last pass */
struct query *next; /* next query control block in chain */
int smtp_socket; /* socket descriptor for SMTP connection */
unsigned int uid; /* UID of user to deliver to */
char digest [DIGESTLEN]; /* md5 digest buffer */
};
#define MULTIDROP(ctl) (ctl->wildcard || \
((ctl)->localnames && (ctl)->localnames->next))
struct method
{
char *name; /* protocol name */
int port; /* service port */
bool tagged; /* if true, generate & expect command tags */
bool delimited; /* if true, accept "." message delimiter */
bool force_getsizes; /* if true, fetch's size return unreliable */
int (*parse_response)(); /* response_parsing function */
int (*getauth)(); /* authorization fetcher */
int (*getrange)(); /* get message range to fetch */
int (*getsizes)(); /* get sizes of messages */
int (*is_old)(); /* check for old message */
int (*fetch_headers)(); /* fetch FROM headera given message */
int (*fetch_body)(); /* fetch a given message */
int (*trail)(); /* eat trailer of a message */
int (*delete)(); /* delete method */
char *exit_cmd; /* exit command */
};
#define TAGLEN 6
extern char tag[TAGLEN];
/* list of hosts assembled from run control file and command line */
extern struct query cmd_opts, *querylist;
/* controls the detail level of status/progress messages written to stderr */
extern int outlevel; /* see the O_.* constants above */
extern int yydebug; /* enable parse debugging */
/* daemon mode control */
extern int poll_interval; /* poll interval in seconds */
extern bool nodetach; /* if TRUE, don't detach daemon process */
extern char *logfile; /* log file for daemon mode */
extern bool use_syslog; /* if --syslog was set */
extern bool quitmode; /* if --quit was set */
extern bool check_only; /* if --check was set */
extern char *cmd_logfile; /* if --logfile was set */
extern int cmd_daemon; /* if --daemon was set */
/* these get computed */
extern int batchcount; /* count of messages sent in current batch */
extern bool peek_capable; /* can we read msgs without setting seen? */
/* miscellaneous global controls */
extern char *rcfile; /* path name of rc file */
extern char *idfile; /* path name of UID file */
extern int linelimit; /* limit # lines retrieved per site */
extern bool versioninfo; /* emit only version info */
extern char *user; /* name of invoking user */
extern char *fetchmailhost; /* the name of the host running fetchmail */
/* prototypes for globally callable functions */
#if defined(HAVE_STDARG_H)
void error_init(int foreground);
void error (int status, int errnum, const char *format, ...);
void error_build (const char *format, ...);
void error_complete (int status, int errnum, const char *format, ...);
void error_at_line (int, int, const char *, unsigned int, const char *, ...);
void gen_send (int sock, char *, ... );
int gen_recv(int sock, char *buf, int size);
int gen_transact (int sock, char *, ... );
#else
void error ();
void error_build ();
void error_complete ();
void error_at_line ();
void gen_send ();
int gen_transact ();
#endif
int do_protocol(struct query *, const struct method *);
int doPOP2 (struct query *);
int doPOP3 (struct query *);
int doIMAP (struct query *);
int doETRN (struct query *);
void reply_hack(char *, const char *);
char *nxtaddr(const char *);
void initialize_saved_lists(struct query *, const char *);
struct idlist *save_str(struct idlist **, int, const char *);
void free_str_list(struct idlist **);
void save_str_pair(struct idlist **, const char *, const char *);
void free_str_pair_list(struct idlist **);
int delete_str(struct idlist **, int);
int str_in_list(struct idlist **, const char *);
char *str_find(struct idlist **, int);
char *idpair_find(struct idlist **, const char *);
void append_str_list(struct idlist **, struct idlist **);
void update_str_lists(struct query *);
void write_saved_lists(struct query *, const char *);
struct query *hostalloc(struct query *);
int parsecmdline (int, char **, struct query *);
void optmerge(struct query *, struct query *);
char *MD5Digest (char *);
int daemonize(const char *, void (*)(int));
int prc_parse_file(const char *);
int prc_filecheck(const char *);
void interface_parse(char *, struct hostdata *);
void interface_note_activity(struct hostdata *);
int interface_approve(struct hostdata *);
char *getpassword(char *);
void escapes(const char *, char *);
void yyerror(const char *);
int yylex(void);
void to64frombits(unsigned char *, const unsigned char *, int);
int from64tobits(char *, const char *);
#if defined(HAVE_VOIDPOINTER)
#define XMALLOCTYPE void
#else
#define XMALLOCTYPE char
#endif
XMALLOCTYPE *xmalloc(int);
XMALLOCTYPE *xrealloc(XMALLOCTYPE *, int);
char *xstrdup(const char *);
#define FALSE 0
#define TRUE 1
#define STRING_DISABLED (char *)-1
/* fetchmail.h ends here */
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