Add zip64 support to ijar

This allows ijar to process jars with >65535 entries.

--
MOS_MIGRATED_REVID=109321374

1 files changed, 12 insertions, 0 deletions

diff --git a/third_party/ijar/common.h b/third_party/ijar/common.h
index f7df14bb75..513e0019a9 100644
--- a/third_party/ijar/common.h
+++ b/third_party/ijar/common.h
@@ -59,6 +59,13 @@ inline u4 get_u4le(const u1 *&p) {
     return x;
 }
 
+inline u8 get_u8le(const u1 *&p) {
+  u4 lo = get_u4le(p);
+  u4 hi = get_u4le(p);
+  u8 x = ((u8)hi << 32) | lo;
+  return x;
+}
+
 inline void put_u1(u1 *&p, u1 x) {
     *p++ = x;
 }
@@ -87,6 +94,11 @@ inline void put_u4le(u1 *&p, u4 x) {
     *p++ = x >> 24;
 }
 
+inline void put_u8le(u1 *&p, u8 x) {
+  put_u4le(p, x & 0xffffffff);
+  put_u4le(p, (x >> 32) & 0xffffffff);
+}
+
 // Copy n bytes from src to p, and advance p.
 inline void put_n(u1 *&p, const u1 *src, size_t n) {
   memcpy(p, src, n);