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-rw-r--r--builtin-unpack-objects.c49
1 files changed, 27 insertions, 22 deletions
diff --git a/builtin-unpack-objects.c b/builtin-unpack-objects.c
index a891866665..685566e0b5 100644
--- a/builtin-unpack-objects.c
+++ b/builtin-unpack-objects.c
@@ -13,13 +13,13 @@
#include "fsck.h"
static int dry_run, quiet, recover, has_errors, strict;
-static const char unpack_usage[] = "git-unpack-objects [-n] [-q] [-r] [--strict] < pack-file";
+static const char unpack_usage[] = "git unpack-objects [-n] [-q] [-r] [--strict] < pack-file";
/* We always read in 4kB chunks. */
static unsigned char buffer[4096];
static unsigned int offset, len;
static off_t consumed_bytes;
-static SHA_CTX ctx;
+static git_SHA_CTX ctx;
/*
* When running under --strict mode, objects whose reachability are
@@ -59,7 +59,7 @@ static void *fill(int min)
if (min > sizeof(buffer))
die("cannot fill %d bytes", min);
if (offset) {
- SHA1_Update(&ctx, buffer, offset);
+ git_SHA1_Update(&ctx, buffer, offset);
memmove(buffer, buffer + offset, len);
offset = 0;
}
@@ -68,7 +68,7 @@ static void *fill(int min)
if (ret <= 0) {
if (!ret)
die("early EOF");
- die("read error on input: %s", strerror(errno));
+ die_errno("read error on input");
}
len += ret;
} while (len < min);
@@ -99,10 +99,10 @@ static void *get_data(unsigned long size)
stream.avail_out = size;
stream.next_in = fill(1);
stream.avail_in = len;
- inflateInit(&stream);
+ git_inflate_init(&stream);
for (;;) {
- int ret = inflate(&stream, 0);
+ int ret = git_inflate(&stream, 0);
use(len - stream.avail_in);
if (stream.total_out == size && ret == Z_STREAM_END)
break;
@@ -118,7 +118,7 @@ static void *get_data(unsigned long size)
stream.next_in = fill(1);
stream.avail_in = len;
}
- inflateEnd(&stream);
+ git_inflate_end(&stream);
return buf;
}
@@ -158,7 +158,7 @@ struct obj_info {
#define FLAG_WRITTEN (1u<<21)
static struct obj_info *obj_list;
-unsigned nr_objects;
+static unsigned nr_objects;
/*
* Called only from check_object() after it verified this object
@@ -181,10 +181,10 @@ static void write_cached_object(struct object *obj)
static int check_object(struct object *obj, int type, void *data)
{
if (!obj)
- return 0;
+ return 1;
if (obj->flags & FLAG_WRITTEN)
- return 1;
+ return 0;
if (type != OBJ_ANY && obj->type != type)
die("object type mismatch");
@@ -195,22 +195,24 @@ static int check_object(struct object *obj, int type, void *data)
if (type != obj->type || type <= 0)
die("object of unexpected type");
obj->flags |= FLAG_WRITTEN;
- return 1;
+ return 0;
}
if (fsck_object(obj, 1, fsck_error_function))
die("Error in object");
- if (!fsck_walk(obj, check_object, 0))
+ if (fsck_walk(obj, check_object, NULL))
die("Error on reachable objects of %s", sha1_to_hex(obj->sha1));
write_cached_object(obj);
- return 1;
+ return 0;
}
static void write_rest(void)
{
unsigned i;
- for (i = 0; i < nr_objects; i++)
- check_object(obj_list[i].obj, OBJ_ANY, 0);
+ for (i = 0; i < nr_objects; i++) {
+ if (obj_list[i].obj)
+ check_object(obj_list[i].obj, OBJ_ANY, NULL);
+ }
}
static void added_object(unsigned nr, enum object_type type,
@@ -370,6 +372,8 @@ static void unpack_delta_entry(enum object_type type, unsigned long delta_size,
base_offset = (base_offset << 7) + (c & 127);
}
base_offset = obj_list[nr].offset - base_offset;
+ if (base_offset <= 0 || base_offset >= obj_list[nr].offset)
+ die("offset value out of bound for delta base object");
delta_data = get_data(delta_size);
if (dry_run || !delta_data) {
@@ -420,8 +424,8 @@ static void unpack_delta_entry(enum object_type type, unsigned long delta_size,
static void unpack_one(unsigned nr)
{
unsigned shift;
- unsigned char *pack, c;
- unsigned long size;
+ unsigned char *pack;
+ unsigned long size, c;
enum object_type type;
obj_list[nr].offset = consumed_bytes;
@@ -477,8 +481,7 @@ static void unpack_all(void)
if (!quiet)
progress = start_progress("Unpacking objects", nr_objects);
- obj_list = xmalloc(nr_objects * sizeof(*obj_list));
- memset(obj_list, 0, nr_objects * sizeof(*obj_list));
+ obj_list = xcalloc(nr_objects, sizeof(*obj_list));
for (i = 0; i < nr_objects; i++) {
unpack_one(i);
display_progress(progress, i + 1);
@@ -494,6 +497,8 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix)
int i;
unsigned char sha1[20];
+ read_replace_refs = 0;
+
git_config(git_default_config, NULL);
quiet = !isatty(2);
@@ -539,10 +544,10 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix)
/* We don't take any non-flag arguments now.. Maybe some day */
usage(unpack_usage);
}
- SHA1_Init(&ctx);
+ git_SHA1_Init(&ctx);
unpack_all();
- SHA1_Update(&ctx, buffer, offset);
- SHA1_Final(sha1, &ctx);
+ git_SHA1_Update(&ctx, buffer, offset);
+ git_SHA1_Final(sha1, &ctx);
if (strict)
write_rest();
if (hashcmp(fill(20), sha1))