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
|
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include "buffer.h"
#include "exit.h"
#include "fmt.h"
#include "getln.h"
#include "ip.h"
#include "logmsg.h"
#include "readclose.h"
#include "sig.h"
#include "socket_if.h"
#include "str.h"
#include "stralloc.h"
#include "timeout.h"
#include "timeoutconn.h"
#include "uint_t.h"
#include "auto_qmail.h"
#include "control.h"
#define PORT_QMQP 628
void die_success()
{
_exit(0);
}
void die_perm()
{
_exit(31);
}
void nomem()
{
_exit(51);
}
void die_read()
{
if (errno == ENOMEM) nomem();
_exit(54);
}
void die_control()
{
_exit(55);
}
void die_socket()
{
_exit(56);
}
void die_home()
{
_exit(61);
}
void die_temp()
{
_exit(71);
}
void die_conn()
{
_exit(74);
}
void die_format()
{
_exit(91);
}
int lasterror = 55;
int qmqpfd;
ssize_t saferead(int fd, char *buf, int len)
{
int r;
r = timeoutread(60, qmqpfd, buf, len);
if (r <= 0) die_conn();
return r;
}
ssize_t safewrite(int fd, char *buf, int len)
{
int r;
r = timeoutwrite(60, qmqpfd, buf, len);
if (r <= 0) die_conn();
return r;
}
char buf[1024];
buffer bo = BUFFER_INIT(safewrite, -1, buf, sizeof(buf));
buffer bi = BUFFER_INIT(saferead, -1, buf, sizeof(buf));
buffer be = BUFFER_INIT(read, 1, buf, sizeof(buf)); // envelope
/* WARNING: can use only one of these at a time! */
stralloc beforemessage = {0};
stralloc message = {0};
stralloc aftermessage = {0};
char strnum[FMT_ULONG];
stralloc line = {0};
void getmess()
{
int match;
if (readclose_append(0, &message, 1024) == -1) die_read();
strnum[fmt_ulong(strnum, (unsigned long)message.len)] = 0;
if (!stralloc_copys(&beforemessage, strnum)) nomem();
if (!stralloc_cats(&beforemessage, ":")) nomem();
if (!stralloc_copys(&aftermessage, ",")) nomem();
if (getln(&be, &line, &match, '\0') == -1) die_read();
if (!match) die_format();
if (line.len < 2) die_format();
if (line.s[0] != 'F') die_format();
strnum[fmt_ulong(strnum, (unsigned long)line.len - 2)] = 0;
if (!stralloc_cats(&aftermessage, strnum)) nomem();
if (!stralloc_cats(&aftermessage, ":")) nomem();
if (!stralloc_catb(&aftermessage, line.s + 1, line.len - 2)) nomem();
if (!stralloc_cats(&aftermessage, ",")) nomem();
for (;;) {
if (getln(&be, &line, &match, '\0') == -1) die_read();
if (!match) die_format();
if (line.len < 2) break;
if (line.s[0] != 'T') die_format();
strnum[fmt_ulong(strnum, (unsigned long)line.len - 2)] = 0;
if (!stralloc_cats(&aftermessage, strnum)) nomem();
if (!stralloc_cats(&aftermessage, ":")) nomem();
if (!stralloc_catb(&aftermessage, line.s + 1, line.len - 2)) nomem();
if (!stralloc_cats(&aftermessage, ",")) nomem();
}
}
void doit(char *server)
{
struct ip4_address ip4s;
struct ip6_address ip6s;
char *netif = 0;
uint32 ifidx = 0;
char ch;
int i, j, r;
i = str_chr(server, ':');
if (server[i] == ':') {
j = str_chr(server, '%'); /* IF index */
if (server[j] == '%') {
server[j] = 0;
netif = &server[j + 1];
ifidx = socket_getifidx(netif);
}
if (!ip6_scan(server, (char *)&ip6s.d)) return;
qmqpfd = socket(AF_INET6, SOCK_STREAM, 0);
if (qmqpfd == -1) die_socket();
r = timeoutconn6(qmqpfd, (char *)&ip6s.d, PORT_QMQP, 10, ifidx);
} else {
if (!ip4_scan(server, (char *)&ip4s.d)) return;
qmqpfd = socket(AF_INET, SOCK_STREAM, 0);
if (qmqpfd == -1) die_socket();
r = timeoutconn4(qmqpfd, (char *)&ip4s.d, PORT_QMQP, 10);
}
if (r != 0) {
lasterror = 73;
if (errno == ETIMEDOUT) lasterror = 72;
close(qmqpfd);
return;
}
strnum[fmt_ulong(strnum, (unsigned long)(beforemessage.len + message.len + aftermessage.len))] = 0;
buffer_puts(&bo, strnum);
buffer_puts(&bo, ":");
buffer_put(&bo, beforemessage.s, beforemessage.len);
buffer_put(&bo, message.s, message.len);
buffer_put(&bo, aftermessage.s, aftermessage.len);
buffer_puts(&bo, ",");
buffer_flush(&bo);
for (;;) {
buffer_get(&bi, &ch, 1);
if (ch == 'K') die_success();
if (ch == 'Z') die_temp();
if (ch == 'D') die_perm();
}
}
stralloc servers = {0};
int main()
{
int i;
int j;
sig_pipeignore();
if (chdir(auto_qmail) == -1) die_home();
if (control_init() == -1) die_control();
if (control_readfile(&servers, "control/qmqpservers", 0) != 1) die_control();
getmess();
i = 0;
for (j = 0; j < servers.len; ++j)
if (!servers.s[j]) {
doit(servers.s + i);
i = j + 1;
}
_exit(lasterror);
}
|
