static int
copy_source(zip_t *za, zip_source_t *src)
{
zip_uint8_t buf[BUFSIZE];
zip_int64_t n;
int ret;
if (zip_source_open(src) < 0) {
_zip_error_set_from_source(&za->error, src);
return -1;
}
ret = 0;
while ((n=zip_source_read(src, buf, sizeof(buf))) > 0) {
if (_zip_write(za, buf, (zip_uint64_t)n) < 0) {
ret = -1;
break;
}
}
if (n < 0) {
_zip_error_set_from_source(&za->error, src);
ret = -1;
}
zip_source_close(src);
return ret;
}
int
_zip_string_write(zip_t *za, const zip_string_t *s)
{
if (s == NULL)
return 0;
return _zip_write(za, s->raw, s->length);
}
int
_zip_ef_write(zip_t *za, const zip_extra_field_t *ef, zip_flags_t flags)
{
zip_uint8_t b[4];
zip_buffer_t *buffer = _zip_buffer_new(b, sizeof(b));
if (buffer == NULL) {
return -1;
}
for (; ef; ef=ef->next) {
if (ef->flags & flags & ZIP_EF_BOTH) {
_zip_buffer_set_offset(buffer, 0);
_zip_buffer_put_16(buffer, ef->id);
_zip_buffer_put_16(buffer, ef->size);
if (!_zip_buffer_ok(buffer)) {
zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
_zip_buffer_free(buffer);
return -1;
}
if (_zip_write(za, b, 4) < 0) {
_zip_buffer_free(buffer);
return -1;
}
if (ef->size > 0) {
if (_zip_write(za, ef->data, ef->size) < 0) {
_zip_buffer_free(buffer);
return -1;
}
}
}
}
_zip_buffer_free(buffer);
return 0;
}
static int
copy_data(zip_t *za, zip_uint64_t len)
{
zip_uint8_t buf[BUFSIZE];
size_t n;
while (len > 0) {
n = len > sizeof(buf) ? sizeof(buf) : len;
if (_zip_read(za->src, buf, n, &za->error) < 0) {
return -1;
}
if (_zip_write(za, buf, n) < 0) {
return -1;
}
len -= n;
}
return 0;
}