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-rw-r--r--compat/win32mmap.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/compat/win32mmap.c b/compat/win32mmap.c
index 80a8c9af4f..3a39f0fadc 100644
--- a/compat/win32mmap.c
+++ b/compat/win32mmap.c
@@ -24,15 +24,21 @@ void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t of
hmap = CreateFileMapping((HANDLE)_get_osfhandle(fd), NULL,
PAGE_WRITECOPY, 0, 0, NULL);
- if (!hmap)
+ if (!hmap) {
+ errno = EINVAL;
return MAP_FAILED;
+ }
temp = MapViewOfFileEx(hmap, FILE_MAP_COPY, h, l, length, start);
if (!CloseHandle(hmap))
warning("unable to close file mapping handle");
- return temp ? temp : MAP_FAILED;
+ if (temp)
+ return temp;
+
+ errno = GetLastError() == ERROR_COMMITMENT_LIMIT ? EFBIG : EINVAL;
+ return MAP_FAILED;
}
int git_munmap(void *start, size_t length)