diff options
Diffstat (limited to 'packfile.c')
| -rw-r--r-- | packfile.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/packfile.c b/packfile.c index 89402cfc69..e30b051c8a 100644 --- a/packfile.c +++ b/packfile.c @@ -1060,7 +1060,7 @@ unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep) { unsigned shift; - unsigned long size, c; + size_t size, c; unsigned long used = 0; c = buf[used++]; @@ -1068,16 +1068,16 @@ unsigned long unpack_object_header_buffer(const unsigned char *buf, size = c & 15; shift = 4; while (c & 0x80) { - if (len <= used || bitsizeof(long) <= shift) { + if (len <= used || (bitsizeof(long) - 7) <= shift) { error("bad object header"); size = used = 0; break; } c = buf[used++]; - size += (c & 0x7f) << shift; + size = st_add(size, st_left_shift(c & 0x7f, shift)); shift += 7; } - *sizep = size; + *sizep = cast_size_t_to_ulong(size); return used; } |