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| author | Ian McLean <ian.mclean@gmail.com> | 2010-05-20 20:57:51 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2010-05-20 16:11:06 -0700 |
| commit | 60890cc60ccfc7000791a47f1f3d69fdb8884dd7 (patch) | |
| tree | 3dd29923f4bbf988e53883eb65394e6490d47f66 /compat/win32mmap.c | |
| parent | cc24a1d809c75f0b6e5b1e56134b5127196bb2fb (diff) | |
| download | git-60890cc60ccfc7000791a47f1f3d69fdb8884dd7.tar.gz | |
Fix "Out of memory? mmap failed" for files larger than 4GB on Windows
The git_mmap implementation was broken for file sizes that wouldn't fit
into a size_t (32 bits). This was caused by intermediate variables that
were only 32 bits wide when they should be 64 bits.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'compat/win32mmap.c')
| -rw-r--r-- | compat/win32mmap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/compat/win32mmap.c b/compat/win32mmap.c index 1c5a14922f..b58aa69fa0 100644 --- a/compat/win32mmap.c +++ b/compat/win32mmap.c @@ -4,19 +4,19 @@ void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t of { HANDLE hmap; void *temp; - size_t len; + off_t len; struct stat st; uint64_t o = offset; uint32_t l = o & 0xFFFFFFFF; uint32_t h = (o >> 32) & 0xFFFFFFFF; if (!fstat(fd, &st)) - len = xsize_t(st.st_size); + len = st.st_size; else die("mmap: could not determine filesize"); if ((length + offset) > len) - length = len - offset; + length = xsize_t(len - offset); if (!(flags & MAP_PRIVATE)) die("Invalid usage of mmap when built with USE_WIN32_MMAP"); |