(expand_aliases): Bugfix. Do not use statically allocated buffer. Use header_age…

…t_field_name() instead.
The utility freezed with header names longer than 16 bytes.

 /* GNU Mailutils -- a suite of utilities for electronic mail
 /* GNU Mailutils -- a suite of utilities for electronic mail
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2005 Free Software Foundation, Inc.
 
 
    GNU Mailutils is free software; you can redistribute it and/or modify
    GNU Mailutils is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    it under the terms of the GNU General Public License as published by
@@ -364,7 +364,7 @@ expand_aliases (message_t msg)
 {
 {
   header_t hdr;
   header_t hdr;
   size_t i, num;
   size_t i, num;
-  char buf[16];
+  char *buf;
   address_t addr_to = NULL,
   address_t addr_to = NULL,
             addr_cc = NULL,
             addr_cc = NULL,
             addr_bcc = NULL;
             addr_bcc = NULL;
@@ -373,7 +373,8 @@ expand_aliases (message_t msg)
   header_get_field_count (hdr, &num);
   header_get_field_count (hdr, &num);
   for (i = 1; i <= num; i++)
   for (i = 1; i <= num; i++)
     {
     {
-      header_get_field_name (hdr, i, buf, sizeof buf, NULL);
+      if (header_aget_field_name (hdr, i, &buf) == 0)
+	{
 	  if (strcasecmp (buf, MU_HEADER_TO) == 0
 	  if (strcasecmp (buf, MU_HEADER_TO) == 0
 	      || strcasecmp (buf, MU_HEADER_CC) == 0
 	      || strcasecmp (buf, MU_HEADER_CC) == 0
 	      || strcasecmp (buf, MU_HEADER_BCC) == 0)
 	      || strcasecmp (buf, MU_HEADER_BCC) == 0)
@@ -393,6 +394,8 @@ expand_aliases (message_t msg)
 	      else if (strcasecmp (buf, MU_HEADER_BCC) == 0)
 	      else if (strcasecmp (buf, MU_HEADER_BCC) == 0)
 		address_union (&addr_bcc, addr);
 		address_union (&addr_bcc, addr);
 	    }
 	    }
+	  free (buf);
+	}
     }
     }
 
 
   if (addr_to)
   if (addr_to)