1 typedef long long curl_off_t; tool_seek_cb(void * userdata,curl_off_t offset,int whence)2int tool_seek_cb(void *userdata, curl_off_t offset, int whence) 3 { 4 if(offset > 0x7FFFFFFFLL - 0x1LL) 5 { 6 curl_off_t left = offset; 7 while(left) 8 { 9 long step = (left > 0x7FFFFFFFLL - 0x1LL) ? 2147483647L - 1L : (long)left; 10 left -= step; 11 } 12 } 13 } 14