X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=sha1_file.c;h=54648282592d85cea0b1d42e02f358c240991ce2;hb=0cc9e70c4c9adb3e79b4a492f2f989c611d85966;hp=e3d011309a610ad2b81eeabe810e3844e946734b;hpb=028e0491c07f8628d3c94ef01762ad695cc4efa3;p=git.git

diff --git a/sha1_file.c b/sha1_file.c
index e3d01130..54648282 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -108,9 +108,10 @@ int safe_create_leading_directories(char *path)
 
 char * sha1_to_hex(const unsigned char *sha1)
 {
-	static char buffer[50];
+	static int bufno;
+	static char hexbuffer[4][50];
 	static const char hex[] = "0123456789abcdef";
-	char *buf = buffer;
+	char *buffer = hexbuffer[3 & ++bufno], *buf = buffer;
 	int i;
 
 	for (i = 0; i < 20; i++) {
@@ -874,17 +875,19 @@ void packed_object_info_detail(struct pack_entry *e,
 			       unsigned char *base_sha1)
 {
 	struct packed_git *p = e->p;
-	unsigned long offset, left;
+	unsigned long offset;
 	unsigned char *pack;
 	enum object_type kind;
 
 	offset = unpack_object_header(p, e->offset, &kind, size);
 	pack = p->pack_base + offset;
-	left = p->pack_size - offset;
 	if (kind != OBJ_DELTA)
 		*delta_chain_length = 0;
 	else {
 		unsigned int chain_length = 0;
+		if (p->pack_size <= offset + 20)
+			die("pack file %s records an incomplete delta base",
+			    p->pack_name);
 		memcpy(base_sha1, pack, 20);
 		do {
 			struct pack_entry base_ent;