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-rw-r--r--sha1_file.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/sha1_file.c b/sha1_file.c
index 60418da10b..581a9dc522 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -30,6 +30,9 @@
#include "packfile.h"
#include "fetch-object.h"
+/* The maximum size for an object header. */
+#define MAX_HEADER_LEN 32
+
const unsigned char null_sha1[GIT_MAX_RAWSZ];
const struct object_id null_oid;
const struct object_id empty_tree_oid = {
@@ -791,7 +794,7 @@ int check_object_signature(const struct object_id *oid, void *map,
enum object_type obj_type;
struct git_istream *st;
git_hash_ctx c;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen;
if (map) {
@@ -1150,7 +1153,7 @@ static int sha1_loose_object_info(const unsigned char *sha1,
unsigned long mapsize;
void *map;
git_zstream stream;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
struct strbuf hdrbuf = STRBUF_INIT;
unsigned long size_scratch;
@@ -1514,7 +1517,7 @@ static int write_buffer(int fd, const void *buf, size_t len)
int hash_object_file(const void *buf, unsigned long len, const char *type,
struct object_id *oid)
{
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen = sizeof(hdr);
write_object_file_prepare(buf, len, type, oid, hdr, &hdrlen);
return 0;
@@ -1669,7 +1672,7 @@ static int freshen_packed_object(const unsigned char *sha1)
int write_object_file(const void *buf, unsigned long len, const char *type,
struct object_id *oid)
{
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen = sizeof(hdr);
/* Normally if we have it in the pack then we do not bother writing
@@ -1689,7 +1692,7 @@ int hash_object_file_literally(const void *buf, unsigned long len,
int hdrlen, status = 0;
/* type string, SP, %lu of the length plus NUL must fit this */
- hdrlen = strlen(type) + 32;
+ hdrlen = strlen(type) + MAX_HEADER_LEN;
header = xmalloc(hdrlen);
write_object_file_prepare(buf, len, type, oid, header, &hdrlen);
@@ -1709,7 +1712,7 @@ int force_object_loose(const struct object_id *oid, time_t mtime)
void *buf;
unsigned long len;
enum object_type type;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
int hdrlen;
int ret;
@@ -2191,7 +2194,7 @@ int read_loose_object(const char *path,
void *map = NULL;
unsigned long mapsize;
git_zstream stream;
- char hdr[32];
+ char hdr[MAX_HEADER_LEN];
*contents = NULL;