Author: ed
Date: Sun Aug 21 09:32:20 2016
New Revision: 304556
URL: https://svnweb.freebsd.org/changeset/base/304556
Log:
Use the right _MAX constant.
Though uio_resid is of type ssize_t, we need to take into account that
this source file contains an implementation specific to a certain
userspace pointer size. If this file provided 32-bit implementations,
this should have used INT32_MAX, even when running a 64-bit kernel.
This change has no effect, but is simply in preparation for adding
support for running 32-bit CloudABI executables.
Modified:
head/sys/compat/cloudabi64/cloudabi64_fd.c
Modified: head/sys/compat/cloudabi64/cloudabi64_fd.c
==============================================================================
--- head/sys/compat/cloudabi64/cloudabi64_fd.c Sun Aug 21 07:41:11 2016
(r304555)
+++ head/sys/compat/cloudabi64/cloudabi64_fd.c Sun Aug 21 09:32:20 2016
(r304556)
@@ -72,7 +72,7 @@ cloudabi64_copyinuio(const cloudabi64_io
}
iov[i].iov_base = (void *)iovobj.iov_base;
iov[i].iov_len = iovobj.iov_len;
- if (iov[i].iov_len > SSIZE_MAX - uio->uio_resid) {
+ if (iov[i].iov_len > INT64_MAX - uio->uio_resid) {
free(uio, M_IOV);
return (EINVAL);
}
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