diff options
| -rw-r--r-- | qemu-img.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/qemu-img.c b/qemu-img.c index 3a18c93254..44f9092e7d 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -23,6 +23,10 @@ */ #include "vl.h" +#ifdef _WIN32 +#include <windows.h> +#endif + void *get_mmap_addr(unsigned long size) { return NULL; @@ -598,7 +602,19 @@ static int img_convert(int argc, char **argv) #ifdef _WIN32 static int64_t get_allocated_file_size(const char *filename) { + typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high); + get_compressed_t get_compressed; struct _stati64 st; + + /* WinNT support GetCompressedFileSize to determine allocate size */ + get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA"); + if (get_compressed) { + DWORD high, low; + low = get_compressed(filename, &high); + if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) + return (((int64_t) high) << 32) + low; + } + if (_stati64(filename, &st) < 0) return -1; return st.st_size; |