Fix naive use of ftell(3).

Secure coding practices, FIO19-C.
2016-02-16 21:39:19 +00:00 · 2016-02-16 21:39:19 +00:00 · fae984a570
commit fae984a570
parent bc7ee6c357
1 changed files with 1 additions and 1 deletions
--- a/usr.bin/mail/def.h
+++ b/usr.bin/mail/def.h
@ -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));		\
 }