Win32: lstat(): return adequate stat.st_size for symlinks

Git typically doesn't trust the stat.st_size member of symlinks (e.g. see
strbuf_readlink()). However, some functions take shortcuts if st_size is 0
(e.g. diff_populate_filespec()).

In mingw_lstat() and fscache_lstat(), make sure to return an adequate size.

The extra overhead of opening and reading the reparse point to calculate
the exact size is not necessary, as git doesn't rely on the value anyway.

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Karsten Blees 2015-05-16 01:11:37 +02:00 committed by Johannes Schindelin
parent 8b0e6c192d
commit ee52791ddc

View File

@ -1003,8 +1003,8 @@ int mingw_lstat(const char *file_name, struct stat *buf)
buf->st_nlink = 1;
buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes,
findbuf.dwReserved0);
buf->st_size = fdata.nFileSizeLow |
(((off_t)fdata.nFileSizeHigh)<<32);
buf->st_size = S_ISLNK(buf->st_mode) ? MAX_LONG_PATH :
fdata.nFileSizeLow | (((off_t) fdata.nFileSizeHigh) << 32);
buf->st_dev = buf->st_rdev = 0; /* not used by Git */
filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim));
filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim));