From: Tero Marttila <terom@fixme.fi>

Subject: Fix off-by-one error that makes procmail to segfault on certain .procmailrc files

--- a/src/cstdio.c

+++ b/src/cstdio.c

@@ -144,7 +144,7 @@

       { case '\n':case EOF:*q='\0';

 	   return overflow?-1:p!=q;	     /* did we read anything at all? */

       }

-     if(q==end)	    /* check here so that a trailing backslash won't be lost */

+     if(q>=end)	    /* check here so that a trailing backslash won't be lost */

 	q=p,overflow=1;

      *q++=i;

    }

@@ -199,7 +199,7 @@

 	   if(*(target=strchr(target,'\0')-1)=='\\')

 	    { if(chp2!=target)				  /* non-empty line? */

 		 target++;		      /* then preserve the backslash */

-	      if(target>end-2)			  /* space enough for getbl? */

+	      if(target>=end-2)			  /* space enough for getbl? */

 		 target=end-linebuf,overflow=1;		/* toss what we have */

 	      continue;

 	    }