diff options
| author |   deraadt <deraadt@openbsd.org> | 2017-03-17 14:53:08 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 2017-03-17 14:53:08 +0000 |
| commit | 977aa0f22cea0809e6a84289ed753ba3f0b53fa7 (patch) | |
| tree | edc3a3a21d8bdc826b2eb933725c61be66cc74c9 /lib/libc/stdio/open_memstream.c | |
| parent | Fix a couple of argument types. (diff) | |
| download | wireguard-openbsd-977aa0f22cea0809e6a84289ed753ba3f0b53fa7.tar.xz wireguard-openbsd-977aa0f22cea0809e6a84289ed753ba3f0b53fa7.zip | |
Use recallocarray() to avoid leaving detritus in memory when resizing
buffers. We don't bother doing this for objects containing pointers,
but focus on controllable data.
ok millert
Diffstat (limited to 'lib/libc/stdio/open_memstream.c')
| -rw-r--r-- | lib/libc/stdio/open_memstream.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/libc/stdio/open_memstream.c b/lib/libc/stdio/open_memstream.c index f708acc5032..131d4e08e13 100644 --- a/lib/libc/stdio/open_memstream.c +++ b/lib/libc/stdio/open_memstream.c @@ -1,4 +1,4 @@ -/* $OpenBSD: open_memstream.c,v 1.6 2015/08/31 02:53:57 guenther Exp $ */ +/* $OpenBSD: open_memstream.c,v 1.7 2017/03/17 14:53:08 deraadt Exp $ */ /* * Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org> @@ -50,7 +50,7 @@ memstream_write(void *v, const char *b, int l) if (sz < end + 1) sz = end + 1; - p = realloc(st->string, sz); + p = recallocarray(st->string, st->size, sz, 1); if (!p) return (-1); bzero(p + st->size, sz - st->size); |