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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Mailutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _MAILUTILS_SYS_POP3_H
#define _MAILUTILS_SYS_POP3_H
#include <sys/types.h>
#include <mailutils/pop3.h>
#include <mailutils/sys/stream.h>
#include <mailutils/sys/iterator.h>
#include <mailutils/error.h>
#include <mailutils/refcount.h>
#ifdef DMALLOC
# include <dmalloc.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
enum pop3_state
{
POP3_NO_STATE,
POP3_CONNECT, POP3_GREETINGS,
POP3_APOP, POP3_APOP_ACK,
POP3_AUTH, POP3_AUTH_ACK,
POP3_CAPA, POP3_CAPA_ACK, POP3_CAPA_RX,
POP3_DELE, POP3_DELE_ACK,
POP3_LIST, POP3_LIST_ACK, POP3_LIST_RX,
POP3_NOOP, POP3_NOOP_ACK,
POP3_PASS, POP3_PASS_ACK,
POP3_QUIT, POP3_QUIT_ACK,
POP3_RETR, POP3_RETR_ACK, POP3_RETR_RX,
POP3_RSET, POP3_RSET_ACK,
POP3_STAT, POP3_STAT_ACK,
POP3_TOP, POP3_TOP_ACK, POP3_TOP_RX,
POP3_UIDL, POP3_UIDL_ACK, POP3_UIDL_RX,
POP3_USER, POP3_USER_ACK,
POP3_DONE, POP3_UNKNOWN, POP3_ERROR
};
struct p_iterator
{
struct _iterator base;
pop3_t pop3;
mu_refcount_t refcount;
int done;
char *item;
};
struct p_stream
{
struct _stream base;
pop3_t pop3;
mu_refcount_t refcount;
int done;
};
struct work_buf
{
char *buf;
char *ptr;
char *nl;
size_t len;
off_t offset; /* To synchronise with the buffering. */
};
/* Structure to hold things general to POP3 mailbox, like its state, etc ... */
struct _pop3
{
/* Working I/O buffer. */
/* io.buf: Working io buffer. */
/* io.ptr: Points to the end of the buffer, the non consume chars. */
/* io.nl: Points to the '\n' char in the string. */
/* io.len: Len of io_buf. */
/* io.offset; full the stream_t implementation. */
struct work_buf io;
/* Holds the first line response of the last command, i.e the ACK. */
/* ack.buf: Buffer for the ack. */
/* ack.ptr: Working pointer. */
/* ack.len: Size 512 according to RFC2449. */
struct work_buf ack;
int acknowledge;
char *timestamp; /* For apop, if supported. */
unsigned timeout; /* Default is 10 minutes. */
enum pop3_state state;
stream_t carrier; /* TCP Connection. */
mu_debug_t debug; /* Send the debug info. */
};
extern int pop3_iterator_create __P ((pop3_t, iterator_t *));
extern int pop3_stream_create __P ((pop3_t, stream_t *));
extern int pop3_debug_cmd __P ((pop3_t));
extern int pop3_debug_ack __P ((pop3_t));
/* Check for non recoverable error. */
#define POP3_CHECK_EAGAIN(pop3, status) \
do \
{ \
if (status != 0) \
{ \
if (status != MU_ERROR_TRY_AGAIN && status != MU_ERROR_INTERRUPT) \
{ \
pop3->io.ptr = pop3->io.buf; \
pop3->state = POP3_ERROR; \
} \
return status; \
} \
} \
while (0)
/* If error return. */
#define POP3_CHECK_ERROR(pop3, status) \
do \
{ \
if (status != 0) \
{ \
pop3->io.ptr = pop3->io.buf; \
pop3->state = POP3_ERROR; \
return status; \
} \
} \
while (0)
/* Check if we got "+OK". */
#define POP3_CHECK_OK(pop3) \
do \
{ \
if (strncasecmp (pop3->ack.buf, "+OK", 3) != 0) \
{ \
pop3->state = POP3_NO_STATE; \
return MU_ERROR_OPERATION_DENIED; \
} \
} \
while (0)
#ifdef __cplusplus
}
#endif
#endif /* _MAILUTILS_SYS_POP3_H */
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