svn commit: r295675 - head/usr.bin/mail

[Pedro F. Giffuni]

Author: pfg
Date: Tue Feb 16 21:39:19 2016
New Revision: 295675
URL: https://svnweb.freebsd.org/changeset/base/295675

Log:
  Fix naive use of ftell(3).
  
  Secure coding practices, FIO19-C.

Modified:
  head/usr.bin/mail/def.h

Modified: head/usr.bin/mail/def.h
==============================================================================
--- head/usr.bin/mail/def.h	Tue Feb 16 21:36:48 2016	(r295674)
+++ head/usr.bin/mail/def.h	Tue Feb 16 21:39:19 2016	(r295675)
@@ -270,5 +270,5 @@ struct ignoretab {
  */
 #define trunc(stream) {							\
 	(void)fflush(stream); 						\
-	(void)ftruncate(fileno(stream), (off_t)ftell(stream));		\
+	(void)ftruncate(fileno(stream), ftello(stream));		\
 }