Fix MSVC conversion from DWORD to short warning (#2468)

diff --git a/libarchive/archive_write_set_format_zip.c b/libarchive/archive_write_set_format_zip.c
index f7024382129d57680f1acbac4c7cc6c12e6dd812..9f5b76fb96e9ca61bedae882bbb680e1aff61b04 100644 (file)
--- a/libarchive/archive_write_set_format_zip.c
+++ b/libarchive/archive_write_set_format_zip.c
@@ -453,7 +453,8 @@ archive_write_zip_options(struct archive_write *a, const char *key,
                        zip->threads = sysconf(_SC_NPROCESSORS_ONLN);
 #elif !defined(__CYGWIN__) && defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0601
                        /* Windows 7 and up */
-                       zip->threads = GetActiveProcessorCount(ALL_PROCESSOR_GROUPS);
+                       DWORD activeProcs = GetActiveProcessorCount(ALL_PROCESSOR_GROUPS);
+                       zip->threads = activeProcs <= SHRT_MAX ? (short)activeProcs : SHRT_MAX;
 #else
                        zip->threads = 1;
 #endif