Generate license for AppEX

Appex.c

#include <net/if.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <unistd.h>

int main() {
  int fd;
  struct ifreq ifr;
  char *iface = "eth0";
  unsigned char *mac;

  unsigned char buff[16];
  unsigned char serial[8];
  unsigned char apxlic[0x98] = {
      0xB2, 0x26, 0xBC, 0x27, 0x4E, 0x22, 0x0F, 0x53, 0xE2, 0x2D, 0x86, 0x3A,
      0x1E, 0xC9, 0x13, 0xDE, 0xA6, 0x96, 0x1B, 0xD0, 0x46, 0xD0, 0x34, 0xE8,
      0x88, 0x18, 0xE6, 0x8D, 0x26, 0x0D, 0x78, 0x13, 0x45, 0x29, 0x8B, 0x8D,
      0x3B, 0x11, 0xE0, 0x0B, 0x50, 0x61, 0x04, 0x56, 0x67, 0xC1, 0x2A, 0xF4,
      0x98, 0x29, 0x92, 0xAB, 0x86, 0xEE, 0x7A, 0x4F, 0x84, 0xC1, 0xEF, 0x83,
      0x02, 0x0A, 0x1A, 0xDC, 0xD2, 0x3F, 0x1F, 0xFA, 0x69, 0x3E, 0x5D, 0xD4,
      0xC3, 0x18, 0xA8, 0x8A, 0xA5, 0x3F, 0x1F, 0x18, 0xC8, 0x1C, 0xB3, 0xB4,
      0x04, 0xEA, 0xB6, 0x9F, 0x59, 0x99, 0x3F, 0xBF, 0x62, 0xBD, 0x37, 0x3A,
      0x67, 0x47, 0x06, 0x63, 0xCE, 0xA3, 0xF3, 0x26, 0x36, 0xC7, 0x43, 0xE3,
      0xA3, 0x66, 0x44, 0x51, 0x13, 0xEC, 0xF7, 0x42, 0x05, 0xE4, 0x0A, 0xF3,
      0x2C, 0xB3, 0x0C, 0x53, 0x42, 0xCC, 0x5E, 0xBD, 0x98, 0x1F, 0x7E, 0x02,
      0xA9, 0x32, 0x6F, 0x38, 0x23, 0xE8, 0x30, 0x4E, 0x4D, 0x20, 0xF9, 0x42,
      0xF2, 0x0B, 0xDF, 0xBE, 0xAE, 0xEF, 0xF8, 0x43};

  fd = socket(AF_INET, SOCK_DGRAM, 0);

  ifr.ifr_addr.sa_family = AF_INET;
  strncpy(ifr.ifr_name, iface, IFNAMSIZ - 1);
  ioctl(fd, SIOCGIFHWADDR, &ifr);

  close(fd);

  memcpy(buff, ifr.ifr_hwaddr.sa_data, 6);

  for (int i = 0; i < 16; ++i) {
    buff[i] = buff[i % 6] + i;
  }

  for (int i = 0; i < 8; ++i) {
    serial[i] = (buff[i] + buff[i + 8]) % 256;
    printf("%X", serial[i]);
  }

  for (int i = 0; i < 8; ++i) {
    buff[i * 2] = serial[i] / 16;
    buff[i * 2 + 1] = serial[i] % 16;
  }

  for (int i = 0; i < 16; ++i) {
    if (buff[i] > 9) {
      buff[i] += 7;
    }
    apxlic[i + 0x40] += 0xff & buff[i];
  }

  FILE *f = fopen("appex.lic", "wb");
  fwrite(apxlic, sizeof(unsigned char), sizeof(apxlic), f);
  fclose(f);

  return 0;
}