92 lines
3.4 KiB
C
92 lines
3.4 KiB
C
/*-
|
|
* Copyright (c) 2024, Lorenzo Torres
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the <organization> nor the
|
|
* names of its contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef IMAP_H
|
|
#define IMAP_H
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <netinet/in.h>
|
|
#include <openssl/ssl.h>
|
|
#include <openssl/err.h>
|
|
|
|
#define BACKLOG 4
|
|
#define IMAP_SUCCESS 0x0
|
|
#define IMAP_FAIL 0x1
|
|
#define IMAP_LOGOUT 0x2
|
|
#define IMAP_STARTTLS 0x3
|
|
|
|
#define IMAP_STATE_NO_AUTH 0x0
|
|
#define IMAP_STATE_AUTH 0x1
|
|
#define IMAP_STATE_SELECTED 0x2
|
|
|
|
typedef struct _client_list {
|
|
int32_t socket, fd;
|
|
SSL *ssl;
|
|
struct _client_list *next;
|
|
struct _client_list *prev;
|
|
} client_list;
|
|
|
|
|
|
typedef struct imap {
|
|
int32_t socket;
|
|
client_list *clients;
|
|
struct sockaddr_in addr;
|
|
uint8_t state, ssl;
|
|
SSL_CTX *ssl_ctx;
|
|
} imap_t;
|
|
|
|
typedef struct {
|
|
char tag[4];
|
|
uint8_t id;
|
|
size_t p_count;
|
|
char **params;
|
|
} imap_cmd;
|
|
|
|
/* Create a new imap_t instance and initialize the server. */
|
|
uint8_t imap_init(uint8_t daemon, imap_t *instance);
|
|
/* Start the IMAP server. */
|
|
void imap_start(imap_t *instance);
|
|
/* Close all connections and free the allocated memory. */
|
|
void imap_close(imap_t *instance);
|
|
/* Add client to client list */
|
|
client_list *imap_add_client(imap_t *instance, client_list *list, int sock);
|
|
/* Close connection with client */
|
|
client_list *imap_remove_client(imap_t *instance, client_list *list, client_list *node);
|
|
client_list *imap_remove_sock(imap_t *instance, client_list *list, int sock);
|
|
/* Get the higher file descriptor in the client list */
|
|
int imap_get_max_fd(client_list *list, int master);
|
|
imap_cmd imap_parse_cmd(char *s);
|
|
uint8_t imap_match_cmd(char *cmd, size_t len);
|
|
void imap_create_ssl_ctx(imap_t *imap);
|
|
void imap_starttls(imap_t *imap, client_list *list);
|
|
int imap_read(client_list *node, char *buf, size_t len, uint8_t ssl);
|
|
void imap_write(client_list *node, uint8_t ssl, char *fmt, ...);
|
|
void imap_flush(client_list *node, uint8_t ssl);
|
|
uint8_t imap_cmd_exec(imap_cmd cmd, client_list *node, uint8_t ssl, uint8_t state);
|
|
|
|
#endif /* ifndef IMAP_H */
|