/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-smtp-transport.c : class for a smtp transport */
/*
* Authors: Jeffrey Stedfast <fejj@helixcode.com>
*
* Copyright (C) 2000 Helix Code, Inc. (www.helixcode.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "config.h"
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#undef MIN
#undef MAX
#include "camel-mime-filter-crlf.h"
#include "camel-mime-filter-linewrap.h"
#include "camel-stream-filter.h"
#include "camel-smtp-transport.h"
#include "camel-mime-message.h"
#include "camel-multipart.h"
#include "camel-mime-part.h"
#include "camel-stream-buffer.h"
#include "camel-stream-fs.h"
#include "camel-session.h"
#include "camel-exception.h"
#include "md5-utils.h"
#define d(x) x
/* Specified in RFC 821 */
#define SMTP_PORT 25
/* camel smtp transport class prototypes */
static gboolean _can_send (CamelTransport *transport, CamelMedium *message);
static gboolean _send (CamelTransport *transport, CamelMedium *message, CamelException *ex);
static gboolean _send_to (CamelTransport *transport, CamelMedium *message, GList *recipients, CamelException *ex);
/* support prototypes */
static gboolean smtp_connect (CamelService *service, CamelException *ex);
static gboolean smtp_disconnect (CamelService *service, CamelException *ex);
static GList *esmtp_get_authtypes(gchar *buffer);
static GList *query_auth_types_connected (CamelService *service, CamelException *ex);
static GList *query_auth_types_generic (CamelService *service, CamelException *ex);
static void free_auth_types (CamelService *service, GList *authtypes);
static char *get_name (CamelService *service, gboolean brief);
static gboolean smtp_helo (CamelSmtpTransport *transport, CamelException *ex);
static gboolean smtp_mail (CamelSmtpTransport *transport, const char *sender, CamelException *ex);
static gboolean smtp_rcpt (CamelSmtpTransport *transport, const char *recipient, CamelException *ex);
static gboolean smtp_data (CamelSmtpTransport *transport, CamelMedium *message, CamelException *ex);
static gboolean smtp_rset (CamelSmtpTransport *transport, CamelException *ex);
static gboolean smtp_quit (CamelSmtpTransport *transport, CamelException *ex);
/* private data members */
static CamelServiceClass *service_class = NULL;
static void
camel_smtp_transport_class_init (CamelSmtpTransportClass *camel_smtp_transport_class)
{
CamelTransportClass *camel_transport_class =
CAMEL_TRANSPORT_CLASS (camel_smtp_transport_class);
CamelServiceClass *camel_service_class =
CAMEL_SERVICE_CLASS (camel_smtp_transport_class);
service_class = CAMEL_SERVICE_CLASS (camel_type_get_global_classfuncs (camel_service_get_type ()));
/* virtual method overload */
camel_service_class->connect = smtp_connect;
camel_service_class->disconnect = smtp_disconnect;
camel_service_class->query_auth_types_generic = query_auth_types_generic;
camel_service_class->query_auth_types_connected = query_auth_types_connected;
camel_service_class->free_auth_types = free_auth_types;
camel_service_class->get_name = get_name;
camel_transport_class->can_send = _can_send;
camel_transport_class->send = _send;
camel_transport_class->send_to = _send_to;
}
static void
camel_smtp_transport_init (gpointer object)
{
CamelTransport *transport = CAMEL_TRANSPORT (object);
CamelService *service = CAMEL_SERVICE (transport);
transport->supports_8bit = FALSE;
service->url_flags = CAMEL_SERVICE_URL_NEED_HOST;
}
CamelType
camel_smtp_transport_get_type (void)
{
static CamelType camel_smtp_transport_type = CAMEL_INVALID_TYPE;
if (camel_smtp_transport_type == CAMEL_INVALID_TYPE) {
camel_smtp_transport_type =
camel_type_register (CAMEL_TRANSPORT_TYPE, "CamelSmtpTransport",
sizeof (CamelSmtpTransport),
sizeof (CamelSmtpTransportClass),
(CamelObjectClassInitFunc) camel_smtp_transport_class_init,
NULL,
(CamelObjectInitFunc) camel_smtp_transport_init,
NULL);
}
return camel_smtp_transport_type;
}
static gboolean
smtp_connect (CamelService *service, CamelException *ex)
{
CamelSmtpTransport *transport = CAMEL_SMTP_TRANSPORT (service);
struct hostent *h;
struct sockaddr_in sin;
gint fd, num, i;
guint32 addrlen;
gchar *pass = NULL, *respbuf = NULL;
if (!service_class->connect (service, ex))
return FALSE;
h = camel_service_gethost (service, ex);
if (!h)
return FALSE;
/* set some smtp transport defaults */
transport->is_esmtp = FALSE;
transport->esmtp_supported_authtypes = NULL;
CAMEL_TRANSPORT (transport)->supports_8bit = FALSE;
sin.sin_family = h->h_addrtype;
sin.sin_port = htons (service->url->port ? service->url->port : SMTP_PORT);
memcpy (&sin.sin_addr, h->h_addr, sizeof (sin.sin_addr));
fd = socket (h->h_addrtype, SOCK_STREAM, 0);
if (fd == -1 || connect (fd, (struct sockaddr *)&sin, sizeof (sin)) == -1) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_UNAVAILABLE,
"Could not connect to %s (port %d): %s",
service->url->host,
service->url->port ? service->url->port : SMTP_PORT,
strerror (errno));
if (fd > -1)
close (fd);
g_free (pass);
return FALSE;
}
/* get the localaddr - needed later by smtp_helo */
addrlen = sizeof (transport->localaddr);
getsockname (fd, (struct sockaddr*)&transport->localaddr, &addrlen);
transport->ostream = camel_stream_fs_new_with_fd (fd);
transport->istream = camel_stream_buffer_new (transport->ostream,
CAMEL_STREAM_BUFFER_READ);
/* Read the greeting, note whether the server is ESMTP or not. */
do {
/* Check for "220" */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
if (!respbuf || strncmp (respbuf, "220", 3)) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"Welcome response error: "
"%s: possibly non-fatal",
g_strerror (errno));
return FALSE;
}
if (strstr (respbuf, "ESMTP"))
transport->is_esmtp = TRUE;
} while (*(respbuf+3) == '-'); /* if we got "220-" then loop again */
g_free (respbuf);
/* send HELO (or EHLO, depending on the service type) */
if (!transport->is_esmtp) {
/* If we did not auto-detect ESMTP, we should still send EHLO */
transport->is_esmtp = TRUE;
if (!smtp_helo (transport, ex)) {
/* Okay, apprently this server doesn't support ESMTP */
transport->is_esmtp = FALSE;
smtp_helo (transport, ex);
}
} else {
smtp_helo (transport, ex);
}
/* check to see if AUTH is required, if so...then AUTH ourselves */
if (transport->is_esmtp && transport->esmtp_supported_authtypes) {
/* not really supported yet, but we can at least show what auth types are supported */
d(fprintf (stderr, "camel-smtp-transport::connect(): %s requires AUTH\n", service->url->host));
num = g_list_length (transport->esmtp_supported_authtypes);
for (i = 0; i < num; i++)
d(fprintf (stderr, "\nSupported AUTH: %s\n\n",
(gchar *) g_list_nth_data (transport->esmtp_supported_authtypes, i)));
g_list_free (transport->esmtp_supported_authtypes);
transport->esmtp_supported_authtypes = NULL;
} else {
d(fprintf (stderr, "\ncamel-smtp-transport::connect(): provider does not use AUTH\n\n"));
}
return TRUE;
}
static gboolean
smtp_disconnect (CamelService *service, CamelException *ex)
{
CamelSmtpTransport *transport = CAMEL_SMTP_TRANSPORT (service);
/*if (!service->connected)
* return TRUE;
*/
/* send the QUIT command to the SMTP server */
smtp_quit (transport, ex);
if (!service_class->disconnect (service, ex))
return FALSE;
g_free (transport->esmtp_supported_authtypes);
transport->esmtp_supported_authtypes = NULL;
camel_object_unref (CAMEL_OBJECT (transport->ostream));
camel_object_unref (CAMEL_OBJECT (transport->istream));
transport->ostream = NULL;
transport->istream = NULL;
return TRUE;
}
static GList *
esmtp_get_authtypes (gchar *buffer)
{
GList *ret = NULL;
gchar *start, *end;
/* advance to the first token */
for (start = buffer; *start == ' ' || *start == '='; start++);
for ( ; *start; ) {
/* advance to the end of the token */
for (end = start; *end && *end != ' '; end++);
ret = g_list_append (ret, g_strndup (start, end - start));
/* advance to the next token */
for (start = end; *start == ' '; start++);
}
return ret;
}
/* FIXME: use these? */
#ifdef notyet
static CamelServiceAuthType no_authtype = {
"No authentication required",
"This option will connect to the SMTP server without using any "
"kind of authentication. This should be fine for connecting to "
"most SMTP servers."
"",
FALSE
};
static CamelServiceAuthType cram_md5_authtype = {
"CRAM-MD5",
"This option will connect to the SMTP server using CRAM-MD5 "
"authentication.",
"CRAM-MD5",
TRUE
};
#endif
static GList *
query_auth_types_connected (CamelService *service, CamelException *ex)
{
/* FIXME: Re-enable this when auth types are actually
* implemented.
*/
return NULL;
}
static GList *
query_auth_types_generic (CamelService *service, CamelException *ex)
{
/* FIXME: Re-enable this when auth types are actually
* implemented.
*/
return NULL;
}
static void
free_auth_types (CamelService *service, GList *authtypes)
{
g_list_free (authtypes);
}
static char *
get_name (CamelService *service, gboolean brief)
{
if (brief)
return g_strdup_printf ("SMTP server %s", service->url->host);
else {
return g_strdup_printf ("SMTP mail delivery via %s",
service->url->host);
}
}
static gboolean
_can_send (CamelTransport *transport, CamelMedium *message)
{
return CAMEL_IS_MIME_MESSAGE (message);
}
static gboolean
_send_to (CamelTransport *transport, CamelMedium *message,
GList *recipients, CamelException *ex)
{
CamelSmtpTransport *smtp_transport = CAMEL_SMTP_TRANSPORT (transport);
CamelInternetAddress *cia;
char *recipient, *sender;
const char *addr;
GList *r;
sender = g_strdup (camel_mime_message_get_from (CAMEL_MIME_MESSAGE (message)));
if (!sender) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"Cannot send message: "
"sender address not defined.");
return FALSE;
}
cia = camel_internet_address_new ();
camel_address_decode (CAMEL_ADDRESS (cia), sender);
g_free (sender);
if (!camel_internet_address_get (cia, 0, NULL, &addr)) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"Cannot send message: "
"sender address not valid.");
return FALSE;
}
smtp_mail (smtp_transport, addr, ex);
if (!recipients) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"Cannot send message: "
"no recipients defined.");
return FALSE;
}
for (r = recipients; r; r = r->next) {
recipient = (char *) r->data;
if (!smtp_rcpt (smtp_transport, recipient, ex)) {
g_free (recipient);
return FALSE;
}
g_free (recipient);
}
if (!smtp_data (smtp_transport, message, ex))
return FALSE;
/* reset the service for our next transfer session */
smtp_rset (smtp_transport, ex);
return TRUE;
}
static gboolean
_send (CamelTransport *transport, CamelMedium *message, CamelException *ex)
{
const CamelInternetAddress *to, *cc, *bcc;
GList *recipients = NULL;
guint index, len;
to = camel_mime_message_get_recipients (CAMEL_MIME_MESSAGE (message), CAMEL_RECIPIENT_TYPE_TO);
cc = camel_mime_message_get_recipients (CAMEL_MIME_MESSAGE (message), CAMEL_RECIPIENT_TYPE_CC);
bcc = camel_mime_message_get_recipients (CAMEL_MIME_MESSAGE (message), CAMEL_RECIPIENT_TYPE_BCC);
/* get all of the To addresses into our recipient list */
len = CAMEL_ADDRESS (to)->addresses->len;
for (index = 0; index < len; index++) {
const char *addr;
if (camel_internet_address_get (to, index, NULL, &addr))
recipients = g_list_append (recipients, g_strdup (addr));
}
/* get all of the Cc addresses into our recipient list */
len = CAMEL_ADDRESS (cc)->addresses->len;
for (index = 0; index < len; index++) {
const char *addr;
if (camel_internet_address_get (cc, index, NULL, &addr))
recipients = g_list_append (recipients, g_strdup (addr));
}
/* get all of the Bcc addresses into our recipient list */
len = CAMEL_ADDRESS (bcc)->addresses->len;
for (index = 0; index < len; index++) {
const char *addr;
if (camel_internet_address_get (bcc, index, NULL, &addr))
recipients = g_list_append (recipients, g_strdup (addr));
}
return _send_to (transport, message, recipients, ex);
}
static gboolean
smtp_helo (CamelSmtpTransport *transport, CamelException *ex)
{
/* say hello to the server */
gchar *cmdbuf, *respbuf = NULL;
struct hostent *host;
/* get the local host name */
host = gethostbyaddr ((gchar *)&transport->localaddr.sin_addr, sizeof (transport->localaddr.sin_addr), AF_INET);
/* hiya server! how are you today? */
if (transport->is_esmtp) {
if (host && host->h_name)
cmdbuf = g_strdup_printf ("EHLO %s\r\n", host->h_name);
else
cmdbuf = g_strdup_printf ("EHLO [%s]\r\n", inet_ntoa (transport->localaddr.sin_addr));
} else {
if (host && host->h_name)
cmdbuf = g_strdup_printf ("HELO %s\r\n", host->h_name);
else
cmdbuf = g_strdup_printf ("HELO [%s]\r\n", inet_ntoa (transport->localaddr.sin_addr));
}
d(fprintf (stderr, "sending : %s", cmdbuf));
if (camel_stream_write (transport->ostream, cmdbuf, strlen (cmdbuf)) == -1) {
g_free (cmdbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"HELO request timed out: "
"%s: non-fatal",
g_strerror (errno));
return FALSE;
}
g_free (cmdbuf);
do {
/* Check for "250" */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "250", 3)) {
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"HELO response error: "
"%s: non-fatal",
g_strerror (errno));
return FALSE;
}
if (strstr (respbuf, "8BITMIME")) {
d(fprintf (stderr, "This server supports 8bit\n"));
CAMEL_TRANSPORT (transport)->supports_8bit = TRUE;
}
if (transport->is_esmtp && strstr (respbuf, "AUTH")) {
/* parse for supported AUTH types */
char *auths = strstr (respbuf, "AUTH") + 4;
transport->esmtp_supported_authtypes = esmtp_get_authtypes (auths);
}
} while (*(respbuf+3) == '-'); /* if we got "250-" then loop again */
g_free (respbuf);
return TRUE;
}
static gboolean
smtp_mail (CamelSmtpTransport *transport, const char *sender, CamelException *ex)
{
/* we gotta tell the smtp server who we are. (our email addy) */
gchar *cmdbuf, *respbuf = NULL;
/* enclose address in <>'s since some SMTP daemons *require* that */
cmdbuf = g_strdup_printf ("MAIL FROM: <%s>\r\n", sender);
d(fprintf (stderr, "sending : %s", cmdbuf));
if (camel_stream_write (transport->ostream, cmdbuf, strlen (cmdbuf)) == -1) {
g_free (cmdbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"MAIL FROM request timed out: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
g_free (cmdbuf);
do {
/* Check for "250 Sender OK..." */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "250", 3)) {
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"MAIL FROM response error: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
} while (*(respbuf+3) == '-'); /* if we got "250-" then loop again */
g_free (respbuf);
return TRUE;
}
static gboolean
smtp_rcpt (CamelSmtpTransport *transport, const char *recipient, CamelException *ex)
{
/* we gotta tell the smtp server who we are going to be sending
* our email to */
gchar *cmdbuf, *respbuf = NULL;
/* enclose address in <>'s since some SMTP daemons *require* that */
cmdbuf = g_strdup_printf ("RCPT TO: <%s>\r\n", recipient);
d(fprintf (stderr, "sending : %s", cmdbuf));
if (camel_stream_write (transport->ostream, cmdbuf, strlen (cmdbuf)) == -1) {
g_free (cmdbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"RCPT TO request timed out: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
g_free (cmdbuf);
do {
/* Check for "250 Sender OK..." */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "250", 3)) {
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"RCPT TO response error: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
} while (*(respbuf+3) == '-'); /* if we got "250-" then loop again */
g_free (respbuf);
return TRUE;
}
/* FIXME: if the message has 8bit mime parts and the server doesn't
support 8bit, we should re-encode those parts to either QP or
Base64 */
static gboolean
smtp_data (CamelSmtpTransport *transport, CamelMedium *message, CamelException *ex)
{
/* now we can actually send what's important :p */
gchar *cmdbuf, *respbuf = NULL;
CamelStreamFilter *filtered_stream;
CamelMimeFilter *crlffilter, *lwfilter;
gint crlfid, lwid;
/* enclose address in <>'s since some SMTP daemons *require* that */
cmdbuf = g_strdup ("DATA\r\n");
d(fprintf (stderr, "sending : %s", cmdbuf));
if (camel_stream_write (transport->ostream, cmdbuf, strlen (cmdbuf)) == -1) {
g_free (cmdbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"DATA request timed out: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
g_free (cmdbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "354", 3)) {
/* we should have gotten instructions on how to use the DATA command:
* 354 Enter mail, end with "." on a line by itself
*/
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"DATA response error: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
g_free (respbuf);
respbuf = NULL;
/* setup stream filtering */
lwfilter = camel_mime_filter_linewrap_new (998, 998, '\t');
crlffilter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_ENCODE, CAMEL_MIME_FILTER_CRLF_MODE_CRLF_DOTS);
filtered_stream = camel_stream_filter_new_with_stream (transport->ostream);
lwid = camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (lwfilter));
crlfid = camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (crlffilter));
if (camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (message), CAMEL_STREAM (filtered_stream)) == -1) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"DATA send timed out: message termination: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
camel_stream_filter_remove (filtered_stream, lwid);
camel_stream_filter_remove (filtered_stream, crlfid);
camel_stream_flush (CAMEL_STREAM (filtered_stream));
camel_object_unref (CAMEL_OBJECT (filtered_stream));
/* terminate the message body */
d(fprintf (stderr, "sending : \\r\\n.\\r\\n\n"));
if (camel_stream_write (transport->ostream, "\r\n.\r\n", 5) == -1) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"DATA send timed out: message termination: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
do {
/* Check for "250 Sender OK..." */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "250", 3)) {
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"DATA response error: message termination: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
} while (*(respbuf+3) == '-'); /* if we got "250-" then loop again */
g_free (respbuf);
return TRUE;
}
static gboolean
smtp_rset (CamelSmtpTransport *transport, CamelException *ex)
{
/* we are going to reset the smtp server (just to be nice) */
gchar *cmdbuf, *respbuf = NULL;
cmdbuf = g_strdup ("RSET\r\n");
d(fprintf (stderr, "sending : %s", cmdbuf));
if (camel_stream_write (transport->ostream, cmdbuf, strlen (cmdbuf)) == -1) {
g_free (cmdbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"RSET request timed out: "
"%s",
g_strerror (errno));
return FALSE;
}
g_free (cmdbuf);
do {
/* Check for "250" */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "250", 3)) {
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"RSET response error: %s",
g_strerror (errno));
return FALSE;
}
} while (*(respbuf+3) == '-'); /* if we got "250-" then loop again */
g_free (respbuf);
return TRUE;
}
static gboolean
smtp_quit (CamelSmtpTransport *transport, CamelException *ex)
{
/* we are going to reset the smtp server (just to be nice) */
gchar *cmdbuf, *respbuf = NULL;
cmdbuf = g_strdup ("QUIT\r\n");
d(fprintf (stderr, "sending : %s", cmdbuf));
if (camel_stream_write (transport->ostream, cmdbuf, strlen (cmdbuf)) == -1) {
g_free (cmdbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"QUIT request timed out: "
"%s: non-fatal",
g_strerror (errno));
return FALSE;
}
g_free (cmdbuf);
do {
/* Check for "221" */
g_free (respbuf);
respbuf = camel_stream_buffer_read_line (CAMEL_STREAM_BUFFER (transport->istream));
d(fprintf (stderr, "received: %s\n", respbuf ? respbuf : "(null)"));
if (!respbuf || strncmp (respbuf, "221", 3)) {
g_free (respbuf);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"QUIT response error: "
"%s: non-fatal",
g_strerror (errno));
return FALSE;
}
} while (*(respbuf+3) == '-'); /* if we got "221-" then loop again */
g_free (respbuf);
return TRUE;
}