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#include <unistd.h>
#include "buffer.h"
#include "byte.h"
#include "case.h"
#include "env.h"
#include "exit.h"
#include "fmt.h"
#include "ip.h"
#include "sig.h"
#include "str.h"
#include "now.h"
#include "qmail.h"
#include "received.h"
#ifdef USE_CONFIG
#include "fehsqm-config.h"
#else
#include "auto_qmail.h"
#endif
#define PORT_QMQP "628"
static void resources()
{
_exit(111);
}
static ssize_t safewrite(int fd, char *buf, int len)
{
int r;
r = write(fd, buf, len);
if (r <= 0) _exit(0);
return r;
}
static ssize_t saferead(int fd, char *buf, int len)
{
int r;
r = read(fd, buf, len);
if (r <= 0) _exit(0);
return r;
}
char inbuf[512];
buffer bi = BUFFER_INIT(saferead, 0, inbuf, sizeof(inbuf));
char outbuf[256];
buffer bo = BUFFER_INIT(safewrite, 1, outbuf, sizeof(outbuf));
unsigned long bytesleft = 100;
static void getbyte(char *ch)
{
if (!bytesleft--) _exit(100);
buffer_get(&bi, ch, 1);
}
static unsigned long getlen()
{
unsigned long len = 0;
char ch;
for (;;) {
getbyte(&ch);
if (ch == ':') return len;
if (len > 200000000) resources();
len = 10 * len + (ch - '0');
}
}
static void getcomma()
{
char ch;
getbyte(&ch);
if (ch != ',') _exit(100);
}
struct qmail qq;
static void identify()
{
char *remotehost;
char *remoteinfo;
char *remoteip;
char *local;
char *localport;
remotehost = env_get("TCP6REMOTEHOST");
if (!remotehost) remotehost = env_get("TCPREMOTEHOST");
if (!remotehost) remotehost = "unknown";
remoteinfo = env_get("TCP6REMOTEINFO");
if (!remoteinfo) remoteinfo = env_get("TCPREMOTEINFO");
remoteip = env_get("TCP6REMOTEIP");
if (remoteip && byte_equal(remoteip, 7, V4MAPPREFIX)) remoteip = remoteip + 7;
if (!remoteip) remoteip = env_get("TCPREMOTEIP");
if (!remoteip) remoteip = "unknown";
local = env_get("TCP6LOCALHOST");
if (!local) local = env_get("TCPLOCALHOST");
if (!local) local = env_get("TCP6LOCALIP");
if (!local) local = env_get("TCPLOCALIP");
if (!local) local = "unknown";
localport = env_get("TCP6LOCALPORT");
if (!localport) localport = env_get("TCPLOCALPORT");
if (!localport) localport = "0";
received(&qq, "QMQP", local, remoteip, remotehost, remoteinfo, (char *)0, (char *)0, (char *)0);
}
char buf[1000];
char strnum[FMT_ULONG];
static int getbuf()
{
unsigned long len;
int i;
len = getlen();
if (len >= 1000) {
for (i = 0; i < len; ++i) getbyte(buf);
getcomma();
buf[0] = 0;
return 0;
}
for (i = 0; i < len; ++i) getbyte(buf + i);
getcomma();
buf[len] = 0;
return byte_chr(buf, len, '\0') == len;
}
int flagok = 1;
int main()
{
char *result;
unsigned long qp;
unsigned long len;
char ch;
sig_pipeignore();
sig_alarmcatch(resources);
alarm(3600);
bytesleft = getlen();
len = getlen();
if (chdir(auto_qmail) == -1) resources();
if (qmail_open(&qq) == -1) resources();
qp = qmail_qp(&qq);
identify();
while (len > 0) { /* XXX: could speed this up */
getbyte(&ch);
--len;
qmail_put(&qq, &ch, 1);
}
getcomma();
if (getbuf()) {
qmail_from(&qq, buf);
} else {
qmail_from(&qq, "");
qmail_fail(&qq);
flagok = 0;
}
while (bytesleft) {
if (getbuf()) {
qmail_to(&qq, buf);
} else {
qmail_fail(&qq);
flagok = 0;
}
}
bytesleft = 1;
getcomma();
result = qmail_close(&qq);
if (!*result) {
len = fmt_str(buf, "Kok ");
len += fmt_ulong(buf + len, (unsigned long)now());
len += fmt_str(buf + len, " qp ");
len += fmt_ulong(buf + len, qp);
buf[len] = 0;
result = buf;
}
if (!flagok) result = "Dsorry, I can't accept addresses like that (#5.1.3)";
buffer_put(&bo, strnum, fmt_ulong(strnum, (unsigned long)str_len(result)));
buffer_puts(&bo, ":");
buffer_puts(&bo, result);
buffer_puts(&bo, ",");
buffer_flush(&bo);
_exit(0);
}
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