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#include <unistd.h>
#include "auto_qmail.h"
#include "qmail.h"
#include "received.h"
#include "sig.h"
#include "buffer.h"
#include "exit.h"
#include "now.h"
#include "fmt.h"
#include "env.h"
#include "case.h"
#include "byte.h"
#include "ip.h"
#include "str.h"
#include "qmail.h"
#define PORT_QMQP "628"
#define QMTP_SIZE 200000000
#define QMTP_TIMEOUT 3600
void resources() { _exit(111); }
ssize_t safewrite(int fd,char *buf,int len)
{
int r;
r = write(fd,buf,len);
if (r <= 0) _exit(0);
return r;
}
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[BUFSIZE_MESS];
buffer bi = BUFFER_INIT(saferead,0,inbuf,sizeof(inbuf));
char outbuf[BUFSIZE_LINE];
buffer bo = BUFFER_INIT(safewrite,1,outbuf,sizeof(outbuf));
unsigned long bytesleft = 100;
void getbyte(char *ch)
{
if (!bytesleft--) _exit(100);
buffer_get(&bi,ch,1);
}
unsigned long getlen()
{
unsigned long len = 0;
char ch;
for (;;) {
getbyte(&ch);
if (ch == ':') return len;
if (len > QMTP_SIZE) resources();
len = 10 * len + (ch - '0');
}
}
void getcomma()
{
char ch;
getbyte(&ch);
if (ch != ',') _exit(100);
}
struct qmail qq;
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[BUFSIZE_LINE]; // sender/recipient buffer
char strnum[FMT_ULONG];
int getbuf()
{
unsigned long len;
int i;
len = getlen();
if (len >= BUFSIZE_LINE) {
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(QMTP_TIMEOUT);
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; done */
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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