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
204
205
206
207
208
209
210
211
212
213
214
215
|
#include "sgetopt.h"
#include "substdio.h"
#include "subfd.h"
#include "alloc.h"
#include "auto_qmail.h"
#include "exit.h"
#include "env.h"
#include "str.h"
#include "stralloc.h"
#include "getln.h"
#include "readwrite.h"
#include "wait.h"
#include "fd.h"
#include "sig.h"
void nomem()
{
substdio_putsflush(subfderr,"sendmail: fatal: out of memory\n");
_exit(111);
}
void die_usage()
{
substdio_putsflush(subfderr,"sendmail: usage: sendmail [ -t ] [ -fsender ] [ -Fname ] [ -bp ] [ -bs ] [ arg ... ]\n");
_exit(100);
}
char *smtpdarg[] = { "bin/qmail-smtpd", 0 };
void smtpd()
{
if (!env_get("PROTO")) {
if (!env_put("RELAYCLIENT=")) nomem();
if (!env_put("DATABYTES=0")) nomem();
if (!env_put("PROTO=TCP")) nomem();
if (!env_put("TCPLOCALIP=127.0.0.1")) nomem();
if (!env_put("TCPLOCALHOST=localhost")) nomem();
if (!env_put("TCPREMOTEIP=127.0.0.1")) nomem();
if (!env_put("TCPREMOTEHOST=localhost")) nomem();
if (!env_put("TCPREMOTEINFO=sendmail-bs")) nomem();
}
execv(*smtpdarg,smtpdarg);
substdio_putsflush(subfderr,"sendmail: fatal: unable to run qmail-smtpd\n");
_exit(111);
}
char *qreadarg[] = { "bin/qmail-qread", 0 };
void mailq()
{
execv(*qreadarg,qreadarg);
substdio_putsflush(subfderr,"sendmail: fatal: unable to run qmail-qread\n");
_exit(111);
}
void do_sender(s)
const char *s;
{
char *x;
int n;
int a;
int i;
env_unset("QMAILNAME");
env_unset("MAILNAME");
env_unset("NAME");
env_unset("QMAILHOST");
env_unset("MAILHOST");
n = str_len(s);
a = str_rchr(s, '@');
if (a == n)
{
env_put2("QMAILUSER", s);
return;
}
env_put2("QMAILHOST", s + a + 1);
x = (char *) alloc((a + 1) * sizeof(char));
if (!x) nomem();
for (i = 0; i < a; i++)
x[i] = s[i];
x[i] = 0;
env_put2("QMAILUSER", x);
alloc_free(x);
}
int flagh;
char *sender;
void main(argc,argv)
int argc;
char **argv;
{
int opt;
char **qiargv;
char **arg;
int i;
if (chdir(auto_qmail) == -1) {
substdio_putsflush(subfderr,"sendmail: fatal: unable to switch to qmail home directory\n");
_exit(111);
}
flagh = 0;
sender = 0;
while ((opt = getopt(argc,argv,"vimte:f:p:o:B:F:EJxb:N:")) != opteof)
switch(opt) {
case 'N': break; /* ignore DSN option */
case 'B': break;
case 't': flagh = 1; break;
case 'f': sender = optarg; break;
case 'F': if (!env_put2("MAILNAME",optarg)) nomem(); break;
case 'p': break; /* could generate a Received line from optarg */
case 'v': break;
case 'i': break; /* what an absurd concept */
case 'x': break; /* SVR4 stupidity */
case 'm': break; /* twisted-paper-path blindness, incompetent design */
case 'e': break; /* qmail has only one error mode */
case 'o':
switch(optarg[0]) {
case 'd': break; /* qmail has only one delivery mode */
case 'e': break; /* see 'e' above */
case 'i': break; /* see 'i' above */
case 'm': break; /* see 'm' above */
}
break;
case 'E': case 'J': /* Sony NEWS-OS */
while (argv[optind][optpos]) ++optpos; /* skip optional argument */
break;
case 'b':
switch(optarg[0]) {
case 'm': break;
case 'p': mailq();
case 's': smtpd();
default: die_usage();
}
break;
default:
die_usage();
}
argc -= optind;
argv += optind;
if (str_equal(optprogname,"mailq"))
mailq();
if (str_equal(optprogname,"newaliases")) {
substdio_putsflush(subfderr,"sendmail: fatal: please use fastforward/newaliases instead\n");
_exit(100);
}
qiargv = (char **) alloc((argc + 10) * sizeof(char *));
if (!qiargv) nomem();
arg = qiargv;
*arg++ = "bin/qmail-inject";
*arg++ = (flagh ? "-H" : "-a");
if (sender) {
if (str_equal(sender, "<>")) sender[0] = '\0';
*arg++ = "-f";
*arg++ = sender;
do_sender(sender);
}
*arg++ = "--";
for (i = 0;i < argc;++i) *arg++ = argv[i];
*arg = 0;
int child, pi[2];
if (pipe(pi) == -1) {
substdio_putsflush(subfderr,"sendmail: fatal: unable to open pipe\n");
_exit(100);
}
switch(child = fork()) {
case -1:
substdio_putsflush(subfderr,"sendmail: fatal: unable to fork\n");
_exit(100);
case 0:
close(pi[1]);
if (fd_copy(0,pi[0]) == -1) {
substdio_putsflush(subfderr,"sendmail: fatal: unable to fork\n");
_exit(100);
}
sig_pipedefault();
execv(*qiargv,qiargv);
substdio_putsflush(subfderr,"sendmail: fatal: unable to run qmail-inject\n");
_exit(111);
}
close(pi[0]);
char buf[256];
static substdio ss;
int match;
static stralloc line = {0};
substdio_fdbuf(&ss,write,pi[1],buf,sizeof buf);
for (;;) {
if (getln(subfdin,&line,&match,'\n') != 0) {
substdio_putsflush(subfderr,"sendmail: fatal: read error\n");
_exit(111);
}
if (!match && !line.len) break;
if (match && line.len >= 2 && line.s[line.len - 2] == '\r') {
line.s[line.len - 2] = '\n';
line.len--;
}
substdio_put(&ss, line.s, line.len);
}
substdio_flush(&ss);
close(pi[1]);
int wstat;
if (wait_pid(&wstat,child) == -1) _exit(111);
_exit(wait_exitcode(wstat));
}
|
