forward.c

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#include <unistd.h>
#include "sig.h"
#include "exit.h"
#include "env.h"
#include "qmail.h"
#include "logmsg.h"
#include "buffer.h"
#include "fmt.h"
 
#define WHO "forward"
 
void die_nomem() { logmsg(WHO,111,FATAL,"out of memory"); }
 
struct qmail qqt;
 
ssize_t mywrite(int fd, char *buf, int len)
{
  qmail_put(&qqt,buf,len);
  return len;
}
 
char inbuf[BUFFER_INSIZE];
buffer bi = BUFFER_INIT(read,0,inbuf,sizeof(inbuf));
char outbuf[1];
buffer bo = BUFFER_INIT(mywrite,-1,outbuf,sizeof(outbuf));
 
char num[FMT_ULONG];
 
int main(int argc, char **argv)
{
  char *sender;
  char *dtline;
  char *qqx;
 
  sig_pipeignore();
 
  sender = env_get("NEWSENDER");
  if (!sender)
    logmsg(WHO,100,FATAL,"NEWSENDER not set");
  dtline = env_get("DTLINE");
  if (!dtline)
    logmsg(WHO,100,FATAL,"DTLINE not set");
 
  if (qmail_open(&qqt) == -1)
    logmsg(WHO,111,FATAL,"unable to fork: ");
  qmail_puts(&qqt,dtline);
  if (buffer_copy(&bo,&bi) != 0)
    logmsg(WHO,111,FATAL,"unable to read message: ");
  buffer_flush(&bo);
 
  num[fmt_ulong(num,qmail_qp(&qqt))] = 0;
 
  qmail_from(&qqt,sender);
  while (*++argv) qmail_to(&qqt,*argv);
  qqx = qmail_close(&qqt);
  if (*qqx) logmsg(WHO,*qqx == 'D' ? 100 : 111,FATAL,qqx + 1);
  logmsg(WHO,0,LOG,B("qp ",num));
}