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Diffstat (limited to 'compat/win32mmap.c')
-rw-r--r--compat/win32mmap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/compat/win32mmap.c b/compat/win32mmap.c
index 3a39f0fadc..b836169b3c 100644
--- a/compat/win32mmap.c
+++ b/compat/win32mmap.c
@@ -22,14 +22,15 @@ void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t of
die("Invalid usage of mmap when built with USE_WIN32_MMAP");
hmap = CreateFileMapping((HANDLE)_get_osfhandle(fd), NULL,
- PAGE_WRITECOPY, 0, 0, NULL);
+ prot == PROT_READ ? PAGE_READONLY : PAGE_WRITECOPY, 0, 0, NULL);
if (!hmap) {
errno = EINVAL;
return MAP_FAILED;
}
- temp = MapViewOfFileEx(hmap, FILE_MAP_COPY, h, l, length, start);
+ temp = MapViewOfFileEx(hmap, prot == PROT_READ ?
+ FILE_MAP_READ : FILE_MAP_COPY, h, l, length, start);
if (!CloseHandle(hmap))
warning("unable to close file mapping handle");