1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-sendmail-transport.c: Sendmail-based transport class. */
/*
*
* Author :
* Dan Winship <danw@helixcode.com>
*
* Copyright 2000 Helix Code, Inc. (http://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 <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/wait.h>
#include <unistd.h>
#include "camel-sendmail-transport.h"
#include "camel-mime-message.h"
#include "camel-data-wrapper.h"
#include "camel-stream-fs.h"
#include "camel-exception.h"
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);
static void
camel_sendmail_transport_class_init (CamelSendmailTransportClass *camel_sendmail_transport_class)
{
CamelTransportClass *camel_transport_class =
CAMEL_TRANSPORT_CLASS (camel_sendmail_transport_class);
/* virtual method overload */
camel_transport_class->can_send = _can_send;
camel_transport_class->send = _send;
camel_transport_class->send_to = _send_to;
}
GtkType
camel_sendmail_transport_get_type (void)
{
static GtkType camel_sendmail_transport_type = 0;
if (!camel_sendmail_transport_type) {
GtkTypeInfo camel_sendmail_transport_info =
{
"CamelSendmailTransport",
sizeof (CamelSendmailTransport),
sizeof (CamelSendmailTransportClass),
(GtkClassInitFunc) camel_sendmail_transport_class_init,
(GtkObjectInitFunc) NULL,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_sendmail_transport_type = gtk_type_unique (CAMEL_TRANSPORT_TYPE, &camel_sendmail_transport_info);
}
return camel_sendmail_transport_type;
}
static gboolean
_can_send (CamelTransport *transport, CamelMedium *message)
{
return CAMEL_IS_MIME_MESSAGE (message);
}
static gboolean
_send_internal (CamelMedium *message, char **argv, CamelException *ex)
{
int fd[2], nullfd, wstat;
sigset_t mask, omask;
CamelStream *out;
pid_t pid;
g_assert (CAMEL_IS_MIME_MESSAGE (message));
if (pipe (fd) == -1) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"Could not create pipe to sendmail: "
"%s: mail not sent",
g_strerror (errno));
return FALSE;
}
/* Block SIGCHLD so the calling application doesn't notice
* sendmail exiting before we do.
*/
sigemptyset (&mask);
sigaddset (&mask, SIGCHLD);
sigprocmask (SIG_BLOCK, &mask, &omask);
switch (fork ()) {
case -1:
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"Could not fork sendmail: "
"%s: mail not sent", g_strerror (errno));
sigprocmask (SIG_SETMASK, &omask, NULL);
return FALSE;
case 0:
/* Child process */
nullfd = open ("/dev/null", O_RDWR);
dup2 (fd[0], STDIN_FILENO);
dup2 (nullfd, STDOUT_FILENO);
dup2 (nullfd, STDERR_FILENO);
close (nullfd);
close (fd[1]);
execv (SENDMAIL_PATH, argv);
_exit (255);
}
/* Parent process. Write the message out. */
close (fd[0]);
out = camel_stream_fs_new_with_fd (fd[1]);
camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (message), out);
camel_stream_close (out);
/* Wait for sendmail to exit. */
while (waitpid (pid, &wstat, 0) == -1 && errno == EINTR)
;
sigprocmask (SIG_SETMASK, &omask, NULL);
if (!WIFEXITED (wstat)) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"sendmail exited with signal %s: "
"mail not sent.",
g_strsignal (WTERMSIG (wstat)));
return FALSE;
} else if (WEXITSTATUS (wstat) != 0) {
if (WEXITSTATUS (wstat) == 255) {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
"Could not execute "
SENDMAIL_PATH ": mail not sent.");
} else {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
"sendmail exited with status "
"%d: mail not sent.",
WEXITSTATUS (wstat));
}
return FALSE;
}
return TRUE;
}
static gboolean
_send_to (CamelTransport *transport, CamelMedium *message,
GList *recipients, CamelException *ex)
{
GList *r;
char **argv;
int i, len;
gboolean status;
len = g_list_length (recipients);
argv = g_malloc ((len + 4) * sizeof (char *));
argv[0] = "sendmail";
argv[1] = "-i";
argv[2] = "--";
for (i = 1, r = recipients; i <= len; i++, r = r->next)
argv[i + 2] = r->data;
argv[i + 2] = NULL;
status = _send_internal (message, argv, ex);
g_free (argv);
return status;
}
static gboolean
_send (CamelTransport *transport, CamelMedium *message,
CamelException *ex)
{
char *argv[4] = { "sendmail", "-t", "-i", NULL };
return _send_internal (message, argv, ex);
}
|
