qmail-rspawn.c

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#include <unistd.h>
#include <sys/stat.h>
#include "fd.h"
#include "wait.h"
#include "buffer.h"
#include "exit.h"
#include "error.h"
#include "ipalloc.h"
#include "tcpto.h"
#include "auto_qmail.h"
#include "auto_queue.h"
#include "open.h"
#include "pathexec.h"
 
void initialize(int argc,char **argv) { tcpto_clean(); }
 
int truncreport = 0;
 
void report(buffer *log,int wstat,char *s,int len)
{
  int j;
  int k;
  int result;
  int orr;
 
  if (wait_crashed(wstat)) { buffer_putsflush(log,"Zqmail-spawn: qmail-remote crashed.\n"); return; }
 
  switch (wait_exitcode(wstat)) {
    case   0: break;
    case 111: buffer_putsflush(log,"Zqmail-rspawn: Unable to run qmail-remote.\n"); break;
    default:  buffer_putsflush(log,"Dqmail-rspawn: Unable to run qmail-remote.\n"); return;
  }
 
  if (!len) { buffer_putsflush(log,"Zqmail-rspawn: qmail-remote produced no output.\n"); return; }
 
  result = -1;
  j = 0;
 
  for (k = 0; k < len; ++k)
    if (!s[k]) {
      if (s[j] == 'K') { result = 1; break; }
      if (s[j] == 'Z') { result = 0; break; }
      if (s[j] == 'D') break;
      j = k + 1;
    }
 
  orr = result;
 
  switch (s[0]) {
    case 's': orr = 0; break;
    case 'h': orr = -1;
  }
 
  switch (orr) {
    case  1: buffer_put(log,"K",1); break;
    case  0: buffer_put(log,"Z",1); break;
    case -1: buffer_put(log,"D",1); break;
  }
 
  for (k = 1; k < len;)
    if (!s[k++]) {
      buffer_puts(log,s + 1);
      if (result <= orr)
        if (k < len)
          switch (s[k]) {
            case 'Z': case 'D': case 'K':
                      buffer_puts(log,s + k + 1);
          }
    break;
   }
}
 
int spawn(int fdmess,int fdout,const char *s,char *r,const int at) 
{
  int f;
  char *(args[5]);
  struct stat st;
 
  if (chdir(auto_qmail) == -1) _exit(61);
  if (!stat("control/dkimdomains",&st))
    args[0] = "qmail-dksign";
  else 
    args[0] = "qmail-remote";
  args[1] = r + at + 1;
  args[2] = s;
  args[3] = r;
  args[4] = 0;
 
  if (chdir(auto_queue) == -1) _exit(62);
  if (chdir("queue/mess") == -1) _exit(62);
 
  if (!(f = vfork())) {
    if (fd_move(0,fdmess) == -1) _exit(63);
    if (fd_move(1,fdout) == -1) _exit(63);
    if (fd_copy(2,1) == -1) _exit(63);
    pathexec(args);
    if (errno) _exit(111);
    _exit(100);
  }
  return f;
}