static unsigned char input_buffer[4096];
static unsigned int input_offset, input_len;
static off_t consumed_bytes;
-static SHA_CTX input_ctx;
+static git_SHA_CTX input_ctx;
static uint32_t input_crc32;
static int input_fd, output_fd, pack_fd;
if (input_offset) {
if (output_fd >= 0)
write_or_die(output_fd, input_buffer, input_offset);
- SHA1_Update(&input_ctx, input_buffer, input_offset);
+ git_SHA1_Update(&input_ctx, input_buffer, input_offset);
memmove(input_buffer, input_buffer + input_offset, input_len);
input_offset = 0;
}
if (!pack_name) {
static char tmpfile[PATH_MAX];
snprintf(tmpfile, sizeof(tmpfile),
- "%s/tmp_pack_XXXXXX", get_object_directory());
+ "%s/pack/tmp_pack_XXXXXX", get_object_directory());
output_fd = xmkstemp(tmpfile);
pack_name = xstrdup(tmpfile);
} else
output_fd = -1;
pack_fd = input_fd;
}
- SHA1_Init(&input_ctx);
+ git_SHA1_Init(&input_ctx);
return pack_name;
}
data = src;
do {
ssize_t n = pread(pack_fd, data + rdy, len - rdy, from + rdy);
- if (n <= 0)
+ if (n < 0)
die("cannot pread pack file: %s", strerror(errno));
+ if (!n)
+ die("premature end of pack file, %lu bytes missing",
+ len - rdy);
rdy += n;
} while (rdy < len);
data = xmalloc(obj->size);
/* Check pack integrity */
flush();
- SHA1_Final(sha1, &input_ctx);
+ git_SHA1_Final(sha1, &input_ctx);
if (hashcmp(fill(20), sha1))
die("pack is corrupted (SHA1 mismatch)");
use(20);
}
}
-static int write_compressed(int fd, void *in, unsigned int size, uint32_t *obj_crc)
+static int write_compressed(struct sha1file *f, void *in, unsigned int size)
{
z_stream stream;
unsigned long maxsize;
deflateEnd(&stream);
size = stream.total_out;
- write_or_die(fd, out, size);
- *obj_crc = crc32(*obj_crc, out, size);
+ sha1write(f, out, size);
free(out);
return size;
}
-static struct object_entry *append_obj_to_pack(
+static struct object_entry *append_obj_to_pack(struct sha1file *f,
const unsigned char *sha1, void *buf,
unsigned long size, enum object_type type)
{
s >>= 7;
}
header[n++] = c;
- write_or_die(output_fd, header, n);
- obj[0].idx.crc32 = crc32(0, Z_NULL, 0);
- obj[0].idx.crc32 = crc32(obj[0].idx.crc32, header, n);
+ crc32_begin(f);
+ sha1write(f, header, n);
obj[0].size = size;
obj[0].hdr_size = n;
obj[0].type = type;
obj[0].real_type = type;
obj[1].idx.offset = obj[0].idx.offset + n;
- obj[1].idx.offset += write_compressed(output_fd, buf, size, &obj[0].idx.crc32);
+ obj[1].idx.offset += write_compressed(f, buf, size);
+ obj[0].idx.crc32 = crc32_end(f);
+ sha1flush(f);
hashcpy(obj->idx.sha1, sha1);
return obj;
}
return a->obj_no - b->obj_no;
}
-static void fix_unresolved_deltas(int nr_unresolved)
+static void fix_unresolved_deltas(struct sha1file *f, int nr_unresolved)
{
struct delta_entry **sorted_by_pos;
int i, n = 0;
if (check_sha1_signature(d->base.sha1, base_obj.data,
base_obj.size, typename(type)))
die("local object %s is corrupt", sha1_to_hex(d->base.sha1));
- base_obj.obj = append_obj_to_pack(d->base.sha1, base_obj.data,
- base_obj.size, type);
+ base_obj.obj = append_obj_to_pack(f, d->base.sha1,
+ base_obj.data, base_obj.size, type);
link_base_data(NULL, &base_obj);
find_delta_children(&d->base, &first, &last);
const char *keep_name = NULL, *keep_msg = NULL;
char *index_name_buf = NULL, *keep_name_buf = NULL;
struct pack_idx_entry **idx_objects;
- unsigned char sha1[20];
+ unsigned char pack_sha1[20];
int nongit = 0;
setup_git_directory_gently(&nongit);
parse_pack_header();
objects = xmalloc((nr_objects + 1) * sizeof(struct object_entry));
deltas = xmalloc(nr_objects * sizeof(struct delta_entry));
- parse_pack_objects(sha1);
+ parse_pack_objects(pack_sha1);
if (nr_deltas == nr_resolved_deltas) {
stop_progress(&progress);
/* Flush remaining pack final 20-byte SHA1. */
flush();
} else {
if (fix_thin_pack) {
+ struct sha1file *f;
+ unsigned char read_sha1[20], tail_sha1[20];
char msg[48];
int nr_unresolved = nr_deltas - nr_resolved_deltas;
int nr_objects_initial = nr_objects;
objects = xrealloc(objects,
(nr_objects + nr_unresolved + 1)
* sizeof(*objects));
- fix_unresolved_deltas(nr_unresolved);
+ f = sha1fd(output_fd, curr_pack);
+ fix_unresolved_deltas(f, nr_unresolved);
sprintf(msg, "completed with %d local objects",
nr_objects - nr_objects_initial);
stop_progress_msg(&progress, msg);
- fixup_pack_header_footer(output_fd, sha1,
- curr_pack, nr_objects);
+ sha1close(f, tail_sha1, 0);
+ hashcpy(read_sha1, pack_sha1);
+ fixup_pack_header_footer(output_fd, pack_sha1,
+ curr_pack, nr_objects,
+ read_sha1, consumed_bytes-20);
+ if (hashcmp(read_sha1, tail_sha1) != 0)
+ die("Unexpected tail checksum for %s "
+ "(disk corruption?)", curr_pack);
}
if (nr_deltas != nr_resolved_deltas)
die("pack has %d unresolved deltas",
idx_objects = xmalloc((nr_objects) * sizeof(struct pack_idx_entry *));
for (i = 0; i < nr_objects; i++)
idx_objects[i] = &objects[i].idx;
- curr_index = write_idx_file(index_name, idx_objects, nr_objects, sha1);
+ curr_index = write_idx_file(index_name, idx_objects, nr_objects, pack_sha1);
free(idx_objects);
final(pack_name, curr_pack,
index_name, curr_index,
keep_name, keep_msg,
- sha1);
+ pack_sha1);
free(objects);
free(index_name_buf);
free(keep_name_buf);