(mh_create_message_id): New function.

@@ -303,6 +303,7 @@ int mh_disposition __P((const char *filename));
 int mh_usedraft __P((const char *filename));
 int mh_file_copy __P((const char *from, const char *to));
 char *mh_draft_name __P((void));
+char *mh_create_message_id __P((int));
 int mh_whom __P((char *filename, int check));
 
 void mh_annotate __P((message_t msg, char *field, char *text, int date));
@@ -326,3 +327,4 @@ int mhdraft_stream_create __P((stream_t *stream, stream_t src, int flags));
 void mh_comp_draft __P((char *formfile, char *defformfile, char *draftfile));
 int check_draft_disposition __P((struct mh_whatnow_env *wh, int use_draft));
 
+

@@ -21,6 +21,7 @@
 #include <pwd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/time.h>
 #include <stdarg.h>
 #include <unistd.h>
 #include <errno.h>
@@ -733,3 +734,30 @@ mh_draft_name ()
   return mh_expand_name (draftfolder, "draft", 0);
 }
 
+char *
+mh_create_message_id (int m)
+{
+  char date[4+2+2+2+2+2+1];
+  time_t t = time (NULL);
+  struct tm *tm = localtime (&t);
+  char *host;
+  char *p;
+	  
+  strftime (date, sizeof date, "%Y%m%d%H%M%S", tm);
+  mu_get_host_name (&host);
+
+  if (m)
+    {
+      struct timeval tv;
+      gettimeofday (&tv, NULL);
+      asprintf (&p, "<%s.%lu.%lu@%s>",
+		date,
+		(unsigned long) tv.tv_usec,
+		(unsigned long) getpid (),
+		host);
+    }
+  else
+    asprintf (&p, "<%s.%lu@%s>", date, (unsigned long) getpid (), host);
+  free (host);
+  return p;
+}