uu: Fix Visual Studio compiler warning (#2180)

Switch from int64_t to ssize_t for l and body, which is a no-op on 64
bit systems. On 32 bit systems, this change is okay because these
variables interact with other ssize_t variables in this scope.

Fixes compiler warning regarding line 584 in which ssize_t and int64_t
are mixed in calculations:

warning C4244: '=': conversion from 'int64_t' to 'long'

diff --git a/libarchive/archive_read_support_filter_uu.c b/libarchive/archive_read_support_filter_uu.c
index 7563e861e219c00a0fc38baac7760c071e7d77bd..8d361a4f8e7608f20567b5a3c97aae2494acfef6 100644 (file)
--- a/libarchive/archive_read_support_filter_uu.c
+++ b/libarchive/archive_read_support_filter_uu.c
@@ -506,7 +506,7 @@ read_more:
                uudecode->in_cnt = 0;
        }
        for (;used < avail_in; d += llen, used += llen) {
-               int64_t l, body;
+               ssize_t l, body;
 
                b = d;
                len = get_line(b, avail_in - used, &nl);