--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/received.c	Fri Oct 19 14:06:22 2007 +0200
@@ -0,0 +1,71 @@
+#include "fmt.h"
+#include "qmail.h"
+#include "now.h"
+#include "datetime.h"
+#include "date822fmt.h"
+#include "received.h"
+
+static int issafe(ch) char ch;
+{
+  if (ch == '.') return 1;
+  if (ch == '@') return 1;
+  if (ch == '%') return 1;
+  if (ch == '+') return 1;
+  if (ch == '/') return 1;
+  if (ch == '=') return 1;
+  if (ch == ':') return 1;
+  if (ch == '-') return 1;
+  if ((ch >= 'a') && (ch <= 'z')) return 1;
+  if ((ch >= 'A') && (ch <= 'Z')) return 1;
+  if ((ch >= '0') && (ch <= '9')) return 1;
+  return 0;
+}
+
+void safeput(qqt,s)
+struct qmail *qqt;
+char *s;
+{
+  char ch;
+  while (ch = *s++) {
+    if (!issafe(ch)) ch = '?';
+    qmail_put(qqt,&ch,1);
+  }
+}
+
+static char buf[DATE822FMT];
+
+/* "Received: from relay1.uu.net (HELO uunet.uu.net) (7@192.48.96.5)\n" */
+/* "  by silverton.berkeley.edu with SMTP; 26 Sep 1995 04:46:54 -0000\n" */
+
+void received(qqt,protocol,local,remoteip,remotehost,remoteinfo,helo)
+struct qmail *qqt;
+char *protocol;
+char *local;
+char *remoteip;
+char *remotehost;
+char *remoteinfo;
+char *helo;
+{
+  struct datetime dt;
+
+  qmail_puts(qqt,"Received: from ");
+  safeput(qqt,remotehost);
+  if (helo) {
+    qmail_puts(qqt," (HELO ");
+    safeput(qqt,helo);
+    qmail_puts(qqt,")");
+  }
+  qmail_puts(qqt," (");
+  if (remoteinfo) {
+    safeput(qqt,remoteinfo);
+    qmail_puts(qqt,"@");
+  }
+  safeput(qqt,remoteip);
+  qmail_puts(qqt,")\n  by ");
+  safeput(qqt,local);
+  qmail_puts(qqt," with ");
+  qmail_puts(qqt,protocol);
+  qmail_puts(qqt,"; ");
+  datetime_tai(&dt,now());
+  qmail_put(qqt,buf,date822fmt(buf,&dt));
+}