utsname.h: make new_utsname fields use the proper length constant
Dan Smith [Tue, 16 Jun 2009 22:33:33 +0000 (15:33 -0700)]
The members of the new_utsname structure are defined with magic numbers
that *should* correspond to the constant __NEW_UTS_LEN+1.  Everywhere
else, code assumes this and uses the constant, so this patch makes the
structure match.

Originally suggested by Serge here:

https://lists.linux-foundation.org/pipermail/containers/2009-March/016258.html

Signed-off-by: Dan Smith <danms@us.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/utsname.h

index 1123267..3656b30 100644 (file)
@@ -22,12 +22,12 @@ struct old_utsname {
 };
 
 struct new_utsname {
-       char sysname[65];
-       char nodename[65];
-       char release[65];
-       char version[65];
-       char machine[65];
-       char domainname[65];
+       char sysname[__NEW_UTS_LEN + 1];
+       char nodename[__NEW_UTS_LEN + 1];
+       char release[__NEW_UTS_LEN + 1];
+       char version[__NEW_UTS_LEN + 1];
+       char machine[__NEW_UTS_LEN + 1];
+       char domainname[__NEW_UTS_LEN + 1];
 };
 
 #ifdef __KERNEL__