void *slice_read(const unsigned char *sha1, size_t *outsize)
{
struct slice_file *file = slice_file_read(sha1);
struct strbuf buf = STRBUF_INIT;
void *object;
if (!file)
goto err;
*outsize = 0;
for (uint32_t i = 0; i < file->nr_slices; i++) {
size_t size;
void *sbuf;
sbuf = sha1_file_read(file->slices[i].sha1, &size);
if (!sbuf)
goto err;
strbuf_add(&buf, sbuf, size);
free(sbuf);
*outsize += size;
}
object = xmalloc(*outsize);
strbuf_copyout(&buf, object, *outsize);
free(file);
strbuf_release(&buf);
return object;
err:
free(file);
strbuf_release(&buf);
return NULL;
}
int snap_init(const char *farm_dir)
{
int fd, ret = -1;
struct strbuf buf = STRBUF_INIT;
strbuf_addstr(&buf, farm_dir);
strbuf_addf(&buf, "/%s", "user_snap");
if (!strlen(snap_log_path))
strbuf_copyout(&buf, snap_log_path, sizeof(snap_log_path));
fd = open(snap_log_path, O_CREAT | O_EXCL, 0666);
if (fd < 0) {
if (errno != EEXIST) {
sd_err("%m");
goto out;
}
}
ret = 0;
close(fd);
out:
strbuf_release(&buf);
return ret;
}
static int create_directory(char *p)
{
int i, ret = 0;
struct strbuf buf = STRBUF_INIT;
strbuf_addstr(&buf, p);
strbuf_addstr(&buf, ".farm");
if (mkdir(buf.buf, 0755) < 0) {
if (errno != EEXIST) {
eprintf("%m\n");
ret = -1;
goto err;
}
}
if (!strlen(farm_dir))
strbuf_copyout(&buf, farm_dir, sizeof(farm_dir));
strbuf_addstr(&buf, "/objects");
if (mkdir(buf.buf, 0755) < 0) {
if (errno != EEXIST) {
eprintf("%m\n");
ret = -1;
goto err;
}
}
for (i = 0; i < 256; i++) {
strbuf_addf(&buf, "/%02x", i);
if (mkdir(buf.buf, 0755) < 0) {
if (errno != EEXIST) {
eprintf("%m\n");
ret = -1;
goto err;
}
}
strbuf_remove(&buf, buf.len - 3, 3);
}
if (!strlen(farm_obj_dir))
strbuf_copyout(&buf, farm_obj_dir, sizeof(farm_obj_dir));
err:
strbuf_release(&buf);
return ret;
}
