From 328b68e47ed505907d8bc9b3246bda99a83e6f42 Mon Sep 17 00:00:00 2001
From: manuel <manuel@mausz.at>
Date: Mon, 27 Jul 2015 18:47:13 +0200
Subject: [PATCH] qmail queue custom error patch

see google qmail-queue-custom-error-v2.patch
---
 qmail.c | 26 +++++++++++++++++++++++++-
 qmail.h |  1 +
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/qmail.c b/qmail.c
index 186c092..e61260f 100644
--- a/qmail.c
+++ b/qmail.c
@@ -23,22 +23,32 @@ struct qmail *qq;
 {
   int pim[2];
   int pie[2];
+  int pierr[2];
 
   setup_qqargs();
 
   if (pipe(pim) == -1) return -1;
   if (pipe(pie) == -1) { close(pim[0]); close(pim[1]); return -1; }
- 
+  if (pipe(pierr) == -1) {
+    close(pim[0]); close(pim[1]);
+    close(pie[0]); close(pie[1]);
+    close(pierr[0]); close(pierr[1]);
+    return -1;
+  }
+
   switch(qq->pid = vfork()) {
     case -1:
+      close(pierr[0]); close(pierr[1]);
       close(pim[0]); close(pim[1]);
       close(pie[0]); close(pie[1]);
       return -1;
     case 0:
       close(pim[1]);
       close(pie[1]);
+      close(pierr[0]); /* we want to receive data */
       if (fd_move(0,pim[0]) == -1) _exit(120);
       if (fd_move(1,pie[0]) == -1) _exit(120);
+      if (fd_move(6,pierr[1]) == -1) _exit(120);
       if (chdir(auto_qmail) == -1) _exit(61);
       execv(*binqqargs,binqqargs);
       _exit(120);
@@ -46,6 +56,7 @@ struct qmail *qq;
 
   qq->fdm = pim[1]; close(pim[0]);
   qq->fde = pie[1]; close(pie[0]);
+  qq->fderr = pierr[0]; close(pierr[1]);
   substdio_fdbuf(&qq->ss,write,qq->fdm,qq->buf,sizeof(qq->buf));
   qq->flagerr = 0;
   return 0;
@@ -93,10 +104,22 @@ struct qmail *qq;
 {
   int wstat;
   int exitcode;
+  int match;
+  char ch;
+  static char errstr[256];
+  int len = 0;
 
   qmail_put(qq,"",1);
   if (!qq->flagerr) if (substdio_flush(&qq->ss) == -1) qq->flagerr = 1;
   close(qq->fde);
+  substdio_fdbuf(&qq->ss, read, qq->fderr, qq->buf, sizeof(qq->buf));
+  while(substdio_bget(&qq->ss, &ch, 1) && len < 255) {
+    errstr[len] = ch;
+    len++;
+  }
+  if (len > 0) errstr[len]='\0'; /* add str-term */
+
+  close(qq->fderr);
 
   if (wait_pid(&wstat,qq->pid) != qq->pid)
     return "Zqq waitpid surprise (#4.3.0)";
@@ -127,6 +150,7 @@ struct qmail *qq;
     case 74: return "Zcommunication with mail server failed (#4.4.2)";
     case 91: /* fall through */
     case 81: return "Zqq internal bug (#4.3.0)";
+    case 82: return (len > 2) ? errstr : "Zqq temporary spamfilter problem (#4.3.0)";
     case 120: return "Zunable to exec qq (#4.3.0)";
     default:
       if ((exitcode >= 11) && (exitcode <= 40))
diff --git a/qmail.h b/qmail.h
index 7fa13e2..7babebf 100644
--- a/qmail.h
+++ b/qmail.h
@@ -8,6 +8,7 @@ struct qmail {
   unsigned long pid;
   int fdm;
   int fde;
+  int fderr;
   substdio ss;
   char buf[1024];
 } ;
-- 
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