diff options
Diffstat (limited to 'utils/libservice/src/device.cpp')
| -rw-r--r-- | utils/libservice/src/device.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/utils/libservice/src/device.cpp b/utils/libservice/src/device.cpp index 4ae25a5..825c2bc 100644 --- a/utils/libservice/src/device.cpp +++ b/utils/libservice/src/device.cpp @@ -12,6 +12,8 @@ #include <cstddef> +#include <limits> +#include <stdexcept> #include <string> #include <system_error> #include <utility> @@ -54,11 +56,14 @@ namespace libservice { DWORD nbreq; + if (in_buf_size > std::numeric_limits<DWORD>::max()) + throw std::range_error("input buffer size is too large"); + std::size_t nbwritten = DeviceIoControl( handle, code, const_cast<void*>(in_buf), - in_buf_size, + static_cast<DWORD>(in_buf_size), NULL, 0, &nbreq, @@ -91,13 +96,18 @@ namespace libservice { DWORD nbreq; + if (in_buf_size > std::numeric_limits<DWORD>::max()) + throw std::range_error("input buffer size is too large"); + if (out_buf_size > std::numeric_limits<DWORD>::max()) + throw std::range_error("output buffer size is too large"); + std::size_t nbwritten = DeviceIoControl( handle, code, const_cast<void*>(in_buf), - in_buf_size, + static_cast<DWORD>(in_buf_size), out_buf, - out_buf_size, + static_cast<DWORD>(out_buf_size), &nbreq, NULL); |