mdw@git.distorted.org.uk Git - qmail/blob - forward.c

   1 #include "sig.h"
   2 #include "readwrite.h"
   3 #include "exit.h"
   4 #include "env.h"
   5 #include "qmail.h"
   6 #include "stralloc.h"
   7 #include "subfd.h"
   8 #include "substdio.h"
   9
  10 void die_success() { _exit(0); }
  11 void die_perm(s) char *s; { substdio_putsflush(subfderr,s); _exit(100); }
  12 void die_temp(s) char *s; { substdio_putsflush(subfderr,s); _exit(111); }
  13 void die_nomem() { die_temp("forward: fatal: out of memory\n"); }
  14
  15 struct qmail qqt;
  16
  17 int mywrite(fd,buf,len) int fd; char *buf; int len;
  18 {
  19  qmail_put(&qqt,buf,len);
  20  return len;
  21 }
  22
  23 substdio ssin;
  24 substdio ssout;
  25 char inbuf[SUBSTDIO_INSIZE];
  26 char outbuf[16];
  27
  28 void main(argc,argv)
  29 int argc;
  30 char **argv;
  31 {
  32  char *sender;
  33  char *dtline;
  34
  35  sig_pipeignore();
  36
  37  sender = env_get("NEWSENDER");
  38  if (!sender) die_perm("forward: fatal: NEWSENDER not set\n");
  39  dtline = env_get("DTLINE");
  40  if (!dtline) die_perm("forward: fatal: DTLINE not set\n");
  41
  42  if (qmail_open(&qqt) == -1) die_temp("forward: fatal: unable to fork\n");
  43  qmail_puts(&qqt,dtline);
  44  substdio_fdbuf(&ssin,read,0,inbuf,sizeof(inbuf));
  45  substdio_fdbuf(&ssout,mywrite,-1,outbuf,sizeof(outbuf));
  46  if (substdio_copy(&ssout,&ssin) != 0)
  47    die_temp("forward: fatal: error while reading message\n");
  48  substdio_flush(&ssout);
  49
  50  qmail_from(&qqt,sender);
  51  while (*++argv) qmail_to(&qqt,*argv);
  52  switch(qmail_close(&qqt))
  53   {
  54    case 0: die_success();
  55    case QMAIL_TOOLONG: die_perm("forward: fatal: permanent qmail-queue error\n");
  56    default: die_temp("forward: fatal: temporary qmail-queue error\n");
  57   }
  58 }