grok_mail_folder

#! /usr/bin/awk -f

BEGIN                 { FALSE = 0; TRUE = 1 }

$1 == "From" && (byte_num == content_length + 1 || content_length == 0) \
                      {
                      	in_header = TRUE
                      	content_length = 0
                      	byte_num = 0
                      	++message_num
                        matched_to = FALSE
                        matched_cc = FALSE
                        matched_bcc = FALSE
                      }

in_header == FALSE    { byte_num += length( $0 ) + 1 }

in_header == TRUE     {
			if (NF > 0)
                          {
  			    if ($1 == "Content-Length:")
  			      content_length = $2
  			    else
  			      if ($1 == "To:")
                            	matched_to = /bugtraq/ || /BUGTRAQ/
  			      else if ($1 ~ /^C[cC]:$/)
                            	matched_cc = /bugtraq/ || /BUGTRAQ/
  			      else if ($1 ~ /^B[cC][cC]:$/)
                            	matched_bcc = /bugtraq/ || /BUGTRAQ/
                              else
                            	if ($1 == "Subject:")
                            	  subject =  substr( $0, 10 )
			  }
                        else
                          {
                            in_header = FALSE
                            if (! (matched_to || matched_cc || matched_bcc))
                              printf( "%3d  %s\n", message_num, subject )
			  }
                      }