Parse > 2GiB file sizes correctly

We were using atol(), which on 32 bit, cannot handle values greater than
2GiB, which is fail.

Switch to a strtoull() wrapper function tailored toward parsing off_t
values. This allows parsing of very large positive integer values. off_t
is a signed type, but in our usages, we never parse or have a need for
negative values, so the function will return -1 on error.

Before:
    $ pacman -Si flightgear-data | grep Size
    Download Size  : 2097152.00 K
    Installed Size : 2097152.00 K

After:
    $ ./src/pacman/pacman -Si flightgear-data | grep Size
    Download Size  : 2312592.52 KiB
    Installed Size : 5402896.00 KiB

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index 12d5b7fe..982d3556 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -566,14 +566,14 @@ static int sync_db_read(alpm_db_t *db, struct archive *archive,
 				 * in sync databases, and SIZE is only used in local databases.
 				 */
 				READ_NEXT();
-				pkg->size = atol(line);
+				pkg->size = _alpm_strtoofft(line);
 				/* also store this value to isize if isize is unset */
 				if(pkg->isize == 0) {
 					pkg->isize = pkg->size;
 				}
 			} else if(strcmp(line, "%ISIZE%") == 0) {
 				READ_NEXT();
-				pkg->isize = atol(line);
+				pkg->isize = _alpm_strtoofft(line);
 			} else if(strcmp(line, "%MD5SUM%") == 0) {
 				READ_AND_STORE(pkg->md5sum);
 			} else if(strcmp(line, "%SHA256SUM%") == 0) {