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| author |   dhartmei <dhartmei@openbsd.org> | 2002-09-14 22:03:14 +0000 |
|---|---|---|
| committer | dhartmei <dhartmei@openbsd.org> | 2002-09-14 22:03:14 +0000 |
| commit | 8d62ee40dc28d335867f292dd8aab66f53e20b5b (patch) | |
| tree | ad54f039e1d7d49a8f9d2f8fe09f8b447e2e743f /lib/libc/stdio/makebuf.c | |
| parent | recognize AppleKiwi (diff) | |
| download | wireguard-openbsd-8d62ee40dc28d335867f292dd8aab66f53e20b5b.tar.xz wireguard-openbsd-8d62ee40dc28d335867f292dd8aab66f53e20b5b.zip | |
Move __cleanup into mprotect'ed page to prevent unintentional modifications
similar to the atexit handlers. Idea and help deraadt@, ok deraadt@
Diffstat (limited to 'lib/libc/stdio/makebuf.c')
| -rw-r--r-- | lib/libc/stdio/makebuf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/libc/stdio/makebuf.c b/lib/libc/stdio/makebuf.c index 4ebc3e93362..da9b86ca4ce 100644 --- a/lib/libc/stdio/makebuf.c +++ b/lib/libc/stdio/makebuf.c @@ -35,7 +35,7 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$OpenBSD: makebuf.c,v 1.3 1998/11/25 05:18:49 millert Exp $"; +static char rcsid[] = "$OpenBSD: makebuf.c,v 1.4 2002/09/14 22:03:14 dhartmei Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> @@ -73,7 +73,7 @@ __smakebuf(fp) fp->_bf._size = 1; return; } - __cleanup = _cleanup; + __atexit_register_cleanup(_cleanup); flags |= __SMBF; fp->_bf._base = fp->_p = p; fp->_bf._size = size; |