X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=delta.h;fp=delta.h;h=a15350dabcd497d4cb21261721706eca072de034;hb=39556fbdadaacf67330bc1464e0172468e9c3a5e;hp=31d1820f80f2887d51808170fc86585ada42d42e;hpb=e7ad4a9c3c9d383d1df52410e18808174f7be667;p=git.git

diff --git a/delta.h b/delta.h
index 31d1820f..a15350da 100644
--- a/delta.h
+++ b/delta.h
@@ -19,14 +19,14 @@ extern void *patch_delta(void *src_buf, unsigned long src_size,
 static inline unsigned long get_delta_hdr_size(const unsigned char **datap)
 {
 	const unsigned char *data = *datap;
-	unsigned char cmd = *data++;
-	unsigned long size = cmd & ~0x80;
-	int i = 7;
-	while (cmd & 0x80) {
+	unsigned char cmd;
+	unsigned long size = 0;
+	int i = 0;
+	do {
 		cmd = *data++;
 		size |= (cmd & ~0x80) << i;
 		i += 7;
-	}
+	} while (cmd & 0x80);
 	*datap = data;
 	return size;
 }