diff options
| -rw-r--r-- | sha1_file.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/sha1_file.c b/sha1_file.c index 9978a58da..95b5a403d 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -521,13 +521,15 @@ static int check_packed_git_idx(const char *path, struct packed_git *p) munmap(idx_map, idx_size); return error("wrong index v2 file size in %s", path); } - if (idx_size != min_size) { - /* make sure we can deal with large pack offsets */ - off_t x = 0x7fffffffUL, y = 0xffffffffUL; - if (x > (x + 1) || y > (y + 1)) { - munmap(idx_map, idx_size); - return error("pack too large for current definition of off_t in %s", path); - } + if (idx_size != min_size && + /* + * make sure we can deal with large pack offsets. + * 31-bit signed offset won't be enough, neither + * 32-bit unsigned one will be. + */ + (sizeof(off_t) <= 4)) { + munmap(idx_map, idx_size); + return error("pack too large for current definition of off_t in %s", path); } } |