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/* $OpenBSD: client.h,v 1.14 2011/03/26 10:59:59 gilles Exp $ */
/*
* Copyright (c) 2009 Jacek Masiulaniec <jacekm@dobremiasto.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef nitems
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
#endif
struct smtp_client;
/* return codes for io routines */
#define CLIENT_DONE -1 /* finished */
#define CLIENT_WANT_WRITE -2 /* want read + write */
#define CLIENT_STOP_WRITE -3 /* want read */
#define CLIENT_RCPT_FAIL -4 /* recipient refused */
/* client commands */
#define CLIENT_BANNER 0x1
#define CLIENT_EHLO 0x2
#define CLIENT_HELO 0x3
#define CLIENT_STARTTLS 0x4
#define CLIENT_AUTH 0x5
#define CLIENT_MAILFROM 0x6
#define CLIENT_RCPTTO 0x7
#define CLIENT_DATA 0x8
#define CLIENT_DOT 0x9
#define CLIENT_QUIT 0xa
struct client_cmd {
TAILQ_ENTRY(client_cmd) entry;
char *action;
int type;
void *data;
};
TAILQ_HEAD(cmdqueue, client_cmd);
/* smtp extensions */
#define CLIENT_EXT_STARTTLS 0
#define CLIENT_EXT_AUTH 1
#define CLIENT_EXT_PIPELINING 2
struct client_ext {
short have;
short want;
short must;
short done;
short fail;
char *name;
};
struct client_auth {
char *plain;
char *cert;
size_t certsz;
char *key;
size_t keysz;
};
/* session flags */
#define CLIENT_FLAG_FIRSTTIME 0x1
#define CLIENT_FLAG_HANDSHAKING 0x2
#define CLIENT_FLAG_RCPTOKAY 0x4
#define CLIENT_FLAG_DYING 0x8
struct smtp_client {
size_t cmdi; /* iterator */
size_t cmdw; /* window */
struct cmdqueue cmdsendq; /* cmds to send */
struct cmdqueue cmdrecvq; /* replies waited for */
int flags;
void *rcptfail;
char *ehlo;
char reply[1024];
struct ibuf_read r;
struct msgbuf w;
void *ssl;
int sndlowat;
struct timeval timeout;
FILE *verbose;
struct ibuf *content; /* current chunk of content */
struct ibuf *head; /* headers + part of body */
FILE *body; /* rest of body */
struct client_ext exts[3];
struct client_auth auth;
char status[1024];
};
struct smtp_client *client_init(int, FILE *, char *, int);
void client_ssl_smtps(struct smtp_client *);
void client_ssl_optional(struct smtp_client *);
void client_certificate(struct smtp_client *, char *,
size_t, char *, size_t);
void client_auth(struct smtp_client *, char *);
void client_sender(struct smtp_client *, char *, ...);
void client_rcpt(struct smtp_client *, void *, char *, ...);
void client_printf(struct smtp_client *, char *, ...);
int client_talk(struct smtp_client *, int);
void client_close(struct smtp_client *);
struct client_cmd *cmd_new(int, char *, ...);
void cmd_free(struct client_cmd *);
int client_read(struct smtp_client *);
void client_get_reply(struct smtp_client *, struct client_cmd *,
int *);
int client_write(struct smtp_client *);
int client_use_extensions(struct smtp_client *);
void client_status(struct smtp_client *, char *, ...);
int client_getln(struct smtp_client *, int);
void client_putln(struct smtp_client *, char *, ...);
struct ibuf *client_content_read(FILE *, size_t);
int client_poll(struct smtp_client *);
void client_quit(struct smtp_client *);
int client_socket_read(struct smtp_client *);
int client_socket_write(struct smtp_client *);
char *buf_getln(struct ibuf_read *);
int buf_read(int, struct ibuf_read *);
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